Model 211 Temperature Monitor - Technical Specifications

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Model 211 Temperature Monitor

Input Specifications

	Sensor Temperature Coefficient	Input Range	Excitation Current	Display Resolution	Measurement Resolution	Electronic Accuracy
Diode	negative	0 V to 2.5 V	10 µA ±0.05%⁸	100 µV	20 µV	±160 µV ±0.01% of rdg
Diode	negative	0 V to 7.5 V	10 µA ±0.05%⁸	100 µV	20 µV	±160 µV ±0.02% of rdg
PTC RTD	positive	0 W to 250 W	1 mA ±0.3%⁹	10 mW	2 mW	±0.004 W ±0.02% of rdg
	positive	0 W to 500 W	1 mA ±0.3%⁹	10 mW	2 mW	±0.004 W ±0.02% of rdg
	positive	0 W to 5000 W	1 mA ±0.3%⁹	100 mW	20 mW	±0.06 W ±0.04% of rdg
NTC RTD	negative	0 W to 7500 W	10 µA ±0.05%⁸	100 mW	50 mW	±0.1 W ±0.04% of rdg
⁸ Current source error has negligible effect on measurement accuracy ⁹ Current source error is removed during calibration

Thermometry
Number of inputs	1
Input configuration	Inputs can be configured from the front panel to accept any of the supported input types
Isolation	Measurement is not isolated from chassis ground
A/D resolution	24-bit
Input accuracy	Sensor dependent – refer to Input Specifications table
Measurement resolution	Sensor dependent – refer to Input Specifications table
Maximum update rate	7 rdg/s
User curve	One 200-point CalCurve™ or user curve in non-volatile memory

Sensor Input Configuration

	Diode/RTD
Measurement type	4-lead differential
Excitation	Constant current
Supported sensors	Diodes: Silicon, GaAlAs RTDs: 100 W Platinum, 1000 W Platinum, Carbon-Glass, Cernox™ , and Rox™
Standard curves	DT-470, DT-670, CTI-C, PT-100, and PT-1000
Input connector	Shared 25-pin D-sub

Front Panel
Display	5-digit LED
Number of reading displays	1
Display Units	K, ºC, ºF, V, and W
Reading source	Temperature and sensor units
Display update rate	2 rdg/s
Temp display resolution	0.001º from 0º to 99.999º, 0.01º from 100º to 999.99º, 0.1º above 1000º
Sensor units display resolution	Sensor dependent, to 5 digits
Display annuciators	K, °C, °F, V/W
Keypad	4 full travel keys, numeric and specific functions
Front panel features	Display brightness control, keypad lock-out

Interface

Serial interface

Electrical format

RS-232C

Max baud rate

9600 baud

Connector

9-pin D-sub

Reading rate

Up to 7 rdg/s

Alarms

Number

2, high and low

Data source

Temperature

Settings

High setpoint, Low setpoint, Dead band, Latching or Non-latching

Actuators

Display message, relays

Relays

Number

Contacts

Normally open (NO), normally closed (NC), and common (C)

Contact rating

30 VDC at 1 A

Operation

Activate relays on high or low input alarm or manual

Connector

Shared 25-pin D-sub

Analog output

Isolation

Output is not isolated from chassis ground

Update rate

7 rdg/s

Data source

Temperature

	Voltage	Current
Range	0 V to 10 V	4 mA to 20 mA
Accuracy	±1.25 mV	±2.5 µA
Resolution	0.3 mV	0.6 µV
Min load resistance	500 W	NA
Compliance voltage	NA	10 V
Load regulation	NA	±0.02% of reading 0 to 500 W

	Temperature	Sensor units (fixed by type)
Scales:	0 K to 20 K	Diodes: 1 V = 1 V
	0 K to 100 K	100 W Platinum: 1 V = 100 W
	0 K to 200 K	1000 W Platinum: 1 V = 1000 W
	0 K to 325 K	NTC Resistor: 1 V = 1000 W
	0 K to 475 K
	0 K to 1000 K

Settings

Voltage or current, scale

Connector

Shared 25-pin D-sub

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General
Ambient temperature
Range	15 °C to 35 °C at rated accuracy, 10 ºC to 40 ºC at reduced accuracy
Power requirements	Regulated +5 VDC at 400 mA
Size	96 mm W × 48 mm H × 166 mm D (3.8 in × 1.9 in × 6.5 in)
Mounting	Panel mount into 91 mm W × 44 mm H (3.6 in × 1.7 in) cutout
Weight	0.45 kg (1 lb)
Approvals	CE mark, RoHS compliant

Power Supply (109-132)
Power requirements	100 - 240 VAC, 50 or 60 Hz, 0.3 A max
Output	+5 V at 1.5 A
Size	40.5 mm W × 30 mm H × 64 mm D (1.6 in × 1.2 in × 2.5 in)
Weight	0.15 kg (0.33 lb)

2111 Single 1/4 DIN panel-mount adapter,
105 mm W × 132 mm H (4.1 in × 5.2 in)

2112 Dual 1/4 DIN panel-mount adapter,
105 mm W × 132 mm H (4.1 in × 5.2 in)

Sensor Input Reading Capability

Interface

Display

Sensor Selection: Sensor Temperature Range

Sensor Selection: Typical Sensor Performance

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