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Panel Meters - Counters - Timers - Transmitters, 4-20 mA & Modbus - Ethernet - USB - RS485 - RS232

Laureate Thermocouple Temperature Panel Meter / Controller

High accuracy plus linearized transmitter & control outputs

Load cell meter by Laurel Electronics

Features

  • Factory calibrated for thermocouple types J, K, T, E, N, R, S
  • Entire range of each thermocouple in one scale
  • Selectable 1° or 0.°1, degrees Celsius, Fahrenheit, Kelvin or Rankin
  • Up to 60 conversions per second, peak or valley display
  • Universal 85-264 Vac / 90-300 Vdc or 10-48 Vdc / 12-32 Vac power
  • Wide choice of options:
    - 2 or 4 relays, mechanical or solid state (isolated)
    - Analog output, 4-20 mA, 0-10V, or -10V to +10V (isolated)
    - Communications: Ethernet, WiFi, USB, RS232, RS485 (isolated)
    - Custom curve linearization, rate from consecutive readings
  • -X extended temperature option from -40°C to 70°C
Description
dc-panel-meter

The Laureate thermocouple meter is factory calibrated for type J, K, T, E, N, R and S thermocouples for exceptional accuracy and repeatability. The entire span of each thermocouple type is presented in a single range. The thermocouple type, unit of measure (°C or °F), resolution (1° or 0.1°), and upscale or downscale open sensor indication are selectable from the front panel or via the serial interface. Display in Kelvin or Rankin is selected by offsetting the Celsius or Fahrenheit ranges. Cold junction compensation is standard.

thermocouple signal conditioner board with cold junction compensationAll ranges for all thermocouple types are digitally calibrated at the factory, with calibration factors stored in EEPROM on the signal conditioner board. This allows temperatures sensors and signal conditioner boards to be changed in the field without recalibrating the meter. A cold junction compensation (CJC) transistor which senses ambient temperature is adjacent to the two thermocouple junctions. It is calibrated as a system with the signal conditioner board, which stores all calibration factors in EEPROM.

High read rates at up to 60 or 50 conversions per second while integrating the signal over a full power cycle are provided by Concurrent Slope (US Pat 5,262,780) analog-to-digital conversion. High read rates are ideal for peak or valley capture, real-time computer interface, and control. Peak and valley values are automatically captured. These may be displayed via a front panel pushbutton command or a control signal at the rear connector, or be transmitted as serial data.

Digital filtering is selectable for electrically noisy environments, including a batch averaging filter and an adaptive moving average filter which provides a choice of 8 time constants from 80 ms to 9.6 s. When a significant change in signal level occurs, that filter adapts by briefly switching to the shortest time to follow the change, then reverts back to the selected time constant. In a selectable Auto filter mode, the filter time constant is automatically selected based on detected signal noise.

Designed for system use. Optional plug-in boards for communications and control include Ethernet, WiFi and serial communication boards, dual or quad relay boards, and an isolated analog output board. Laureates may be powered from 85-264 Vac or optionally from 12-32 Vac or 10-48 Vdc. The display is available with red or green LEDs. The 1/8 DIN case meets NEMA 4X (IP65) specifications from the front when panel mounted. Any setup functions and front panel keys can be locked out for simplified usage and security. A built-in isolated 5, 10, or 24 Vdc excitation supply can power transducers and eliminate the need for an external power supply. All power and signal connections are via UL / VDE / CSA rated screw clamp plugs.

Specifications

Quick Selection Guide

TC Type Range Conformity Error
J -210°C to +760°C (-347°F to +1400°F) ±0.09°C (±0.16°F)
K -244°C to +1372°C (-408°F to +2501°F) ±0.1°C (±0.17°F)
T 0°C to +400°C (32°F to 752°F)
-257°C to 0°C (-430°F to +32°F)
±0.03°C (±0.05°F)
±0.2°C (±0.36°F)
E -240°C to +1000°C (-400°F to +1830°F) ±0.18°C (±0.32°F)
N -245°C to +1300°C (-410°F to +2370°F) ±0.10°C (±0.17°F)
R -45°C to +1768°C (-49°F to +3214°F) ±0.17°C (±0.31°F)
S -46°C to +1768°C (-51°F to +3214°F) ±0.12°C (±0.22°F)
Accuracy
Calibration NIST Monograph 125 (IPTS-68)
Overall error at 25°C ±0.01% of full span ± conformity error
Span tempco ±0.003% of reading/°C
Reference junct. accuracy 0.5°C, 10°C to 40°C
Electrical
Input resistance 1 GΩ
Input current 100 pA
Max lead resistance 1 kΩ max for rated accuracy
Overvoltage protection 125 Vac
NMR at 50/60 Hz 80 dB plus selectable digital filter
CMR, DC-60 Hz 120 dB with 500 ohm imbalance
CMV, DC-60 Hz 250 Vac from power and earth grounds
A-to-D Conversion
Technique Concurrent Slope (Pat 5,262,780)
A-to-D rate 60/s at 60 Hz, 50/s at 50 Hz
Output update 56/s at 60 Hz, 47/s at 50 Hz
Display update 3.5/s at 60 Hz, 3/s at 50 Hz
Display
Readout 5 LED digits, 7-segment, 14.2 mm (.56")
Color Red or green LED
Indicators Minus sign plus 4 red LED lamps for relays
Open sensor indication Flashes full-scale
Power Supply Boards (one required)
Voltage, standard 85-264 Vac or 90-300 Vdc
Voltage, optional 12-32 Vac or 10-48 Vdc
Frequency DC or 47-63 Hz
Power  consumption (typ. base meter) 1.2W @ 120Vac, 1.5W @ 240Vac, 1.3W @ 10Vdc, 1.4W @ 20Vdc,
1.55W @ 30Vdc, 1.8W @ 40Vdc, 2.15W @ 48Vdc
Power Isolation 250V rms working, 2.3 kV rms per 1 min test
Analog Output Board (one optional)
Output levels 4-20 mA, 0-20 mA, 0-10V, -10 to +10V (jumper selectable)
Current compliance 2 mA at 10V ( > 5 kΩ load)
Voltage compliance 12V at 20 mA (< 600 Ω load)
Scaling Zero and full scale adjustable from -99999 to +99999
Resolution 16 bits (0.0015% of full scale)
Step function response 80 ms to 99% of final value (typ)
Isolation 250V rms working, 2.3 kV rms per 1 min test
Relay Output Boards (one optional)
Dual magnetic relays 2 Form C, 8A at 250 Vac or 24 Vdc, 0.3A at 250 Vdc, resistive load
Quad magnetic relays 4 Form A (NO), 8A at 250 Vac or 24 Vdc, 0.3A at 250 Vdc, resistive load
Dual solid state relays 2 Form A (NO), 120 mA at 140 Vac or 180 Vdc, resistive load
Quad solid state relays 4 Form A (NO), 120 mA at 140 Vac or 180 Vdc, resistive load
Relay commons Isolated commons for dual relays or each pair of quad relays
Relay isolation 250V rms working, 2.3 kV rms per 1 minute test
Step function response 30 ms (typ) for contact relays, 25 ms (typ) for solid state relays
Relay latching modes Latching or non-latching
Relay active modes Active on or off, active high or low
Hysteresis modes QA passband mode, split hysteresis, span hysteresis
Communication Boards (one optional)
Board selections RS232RS485 with dual RJ11 connectors, RS485 with dual RJ45 connectors, USB, Ethernet, USB-to-RS485 gatewayEthernet-to-RS485 gateway, WiFi with built-in antenna plus USB & RS485, WiFi with external antenna plus USB & RS485
Protocols Laurel Custom ASCII (serial), Modbus RTU (serial), Modbus TCP (Ethernet or WiFi)
Digital addresses 247 (Modbus), 31 (Laurel ASCII),
Isolation 250V rms working, 2.3 kV rms per 1 min test
Environmental
Operating temperature 0°C to 55°C standard, -40°C to 70°C with -X option
Storage temperature. -40°C to 85°C
Relative humidity 95% at 40°C, non-condensing
Protection NEMA-4X (IP-65) when panel mounted
Applications
Linearized 4-20 mA transmitter output of Laureate temperature panel meter

Operation as a 4-20 mA Transmitter

With the optional analog output board, Laureate temperature meters can serve as superb, isolated 4-20 mA transmitters. The analog output is scaled to the display, which is linearized to °C or °F and is exceptionally accurate. The analog output further tracks the high read rate of the meter, at up to 60 readings per second at 60 Hz power. Fast update rates are beneficial in many closed-loop and PID control applications.

Temperature controller operation of Laureate temperature panel meter Combined temperature controller and 4-20 mA transmitter operation of Laureate temperature panel meter

Operation as a Fast Controller

With the dual contact relay or dual solid state relay output board options, Laureate temperature meters can serve as extremely fast and accurate ON/OFF controllers for closed-loop temperature control. Multiple setpoint operating modes are individually selectable for each relay, as explained in the dual-setpoint controller section. Relay duty cycles and chatter can be minimized with programmable hysteresis and time delays. High duty cycles and extremely fast response times are possible with the solid state relay, which has a typical response time of only 17 ms.

Operation as a Supervisory Monitor

By using the optional dual contact relay or dual solid state relay output options, Laureate temperature meters can monitor processes and provide alarms or shutoffs when these processes exceed normal limits. A band deviation operating mode can be selected for each relay, where an alarm is generated whenever the reading is a selected number of counts above or below the setpoint. Relay operation can be selected as latching or non-latching. When an alarm or shutdown condition is reached, a latched output will remain in the alarm condition until it is reset by a front panel pushbutton, via the serial interface, or via the rear connector.

For applications assistance, phone 714-434-6131 ext. 104, or email support@laurels.com
Ordering Guide
Laureate Thermocouple Temperature Panel Meters
Click on the radio buttons to build a model number with pricing (shown below the Ordering Guide). Prices are in US dollars and do not include shipping or duty charges (export sales). Please see our explanations and limitations applicable to pricing and online orders Prices shown are in US Dollars and are Laurel's manufacturer's suggested retail price (MSRP) in the USA. Orders are processed manually, not directly by our shopping cart system. You don't have to supply credit card information when placing an online order.

North American Orders. Laurel does not sell factory-direct in the USA or Canada. Online sales orders are filled through distribution. During the ordering process, you will have the chance to select an authorized Laurel distributor, or you can ask Laurel to refer you to a distributor. The distributor will then contact you to quote shipping, tax and duty (where applicable), and arrange for payment.

International Orders. If your ship-to address indicates that you are outside of the USA or Canada and Laurel has a distributor in your country, we will forward your order to that distributor for follow-up. If Laurel does not have a distributor in your country, we will email you an order acknowledgment and a pro forma invoice which states the product price, shipping charges, and wire transfer information, which includes a $25 bank wire transfer fee.

Questions about your order? Please email your distributor or sales@laurels.com
 
Quantity
Main Board L  Laureate Series meter, plug-in screw terminal connectors $157
Display Color 1  Basic DPM with green LEDs. $0
2  Basic DPM with red LEDs. $0
Power 0  Isolated 85-264 Vac or 90-300 Vdc $75
1  Isolated 12-32 Vac or 10-48 Vdc $115
Relay
Output
(isolated)
0  None $0
1  Two 8A Contact Relays $101
2  Two 120 mA Solid State Relays $70
3  Four 8A Contact Relays $128
4  Four 120 mA Solid State Relays $96
Analog
Output
(isolated)
0  None $0
1  Isolated 4-20 mA, 0-20 mA, 0-10 V, -10 to +10V $115
Data
Interface
(isolated)
0  None $0
1  RS232 (L232) $81
2  RS485 (L485, dual RJ11 connectors) $109
4  RS485 (LMOD, dual RJ45 connectors, not for new design) $135
5  USB (LUSB) $81
6  USB-to-RS485 gateway (LUSB485) $135
7  Ethernet (LNET) $237
8  Ethernet-to-RS485 gateway (LNET485) $259
A  Ethernet + USB (LNET1) $182
B  Ethernet + RS485 (LNET1485) $204
C  WiFi + USB internal antenna (LWIFI) $171
D  WiFi + USB, external antenna (LWIFIX) $193
E  WiFi + USB + RS485, internal antenna (LWIFI485) $204
F  WiFi + USB + RS485, external antenna (LWIFIX485) $226
Signal
Input
(isolated)
Thermocouple Type
JC  Thermocouple Type J, -210°C to 760°C $81
JF  Thermocouple Type J, -347°F to 1400°F $81
KC  Thermocouple Type K, -244°C to 1372°C $81
KF  Thermocouple Type K, -408°F to 2501°F $81
TC  Thermocouple Type T, -257°C to 400°C  $81
TF  Thermocouple Type T, -430°F to 752°F $81
EC  Thermocouple Type E, -240°C to 1000°C $81
EF  Thermocouple Type E, -400°F to 1830°F $81
NC  Thermocouple Type N, -245°C to 1300°C $81
NF  Thermocouple Type N, -410°F to 2370°F $81
SC  Thermocouple Type S, -46°C to 1768°C $81
SF  Thermocouple Type S, -51°F to 3214°F $81
RC  Thermocouple Type R, -45°C to 1768°C $81
RF  Thermocouple Type R, -49°F to 3213°F $74
Add-on
Options
-X  Extended operating temperature option from -40°C to 70°C $33
CBL01  RS232 cable, RJ11 to DB9, 7 ft. Connects RS232 ports of meter and PC. $23
CBL02  USB to RS232 adapter cable. Combination of CBL02 and CBL01 connects meter RS232 port to PC USB port. Combination of CBL02 and CBL04 connects transmitter RS232 terminals to PC USB port. $47
CBL03-1  6-wire data cable, RJ11 to RJ11, 1 ft. Used to daisy chain meters via RS485. $10
CBL03-7  6-wire data cable, RJ11 to RJ11, 7 ft. Used to daisy chain meters via RS485. $10
CBL05  USB cable, A-B. Connects USB ports of meter and PC. $19
CBL06  USB to RS485 adapter cable, half duplex, RJ11 to USB. Connects meter RS485 port to PC USB port. $47
CASE1  Benchtop Laboratory Case for One 1/8 DIN Meter $140
CASE2  Benchtop Laboratory Case for Two 1/8 DIN Meters $140
NL  Meter Lens with Button Pads but no Laurels Logo $5
BL  Meter Lens without Button Pads or Laurels Logo $5
IPC  Splash-proof Cover $48
BOX1  NEMA-4 Enclosure $169
BOX2  NEMA-4 Enclosure plus IPC $218
 
Configured model number L10000JC
Configured price per model $313
Quantity 1
Extended price $313
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