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Installation Guide

Temperature

Z204455-0E 

Page 1 of 4 

©2014 Veris Industries   

 02141 

Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Aerospond, Veris, and the Veris ‘V’ logo are trademarks or registered trademarks of  Veris Industries, L.L.C. in the USA and/or other countries.

Other companies’ trademarks are hereby acknowledged to belong to their respective owners.

TM

NOTICE 

•  This product is not intended for life or safety applications.

•  Do not install this product in hazardous or classified locations.

•  Read and understand the instructions before installing

 

this product.

•  Turn off all power supplying equipment before working on it.

•  The installer is responsible for conformance to all applicable codes.

 

No responsibility is assumed by Veris Industries for any consequences arising out of the 

use of this material.

Product Identification

Product Overview

The TWS analog series measures the temperature of the air inside a room. Devices are designed for use in hospital 
rooms, laboratories, and other spaces that require precise environmental control. The keypad allows control of 
setpoint values. The slide switch position determines the output type (amp or volt). To maintain accuracy, keep 
vents clear of dust, debris, etc. The TWS is warranted for period of five years.

TWS Series

Wall Mount with Analog Setpoints, LCD and

Thermostat Control

Setpoint

= Analog

TWS

Temp Cal 

Certificate

0 = None
1 = 1 point Cal 
         Validation
2 = 2 point Cal 
         Validation

Option

S

= CE

A

Specifications

Input Power

15-30VDC/24VAC, 100mA max. 

Outputs

Switch-selectable amp or volt 
If volt is selected, the configuration menu allows selection between 

0-5V or 0-10V

Physical

UL 94-V-O fire retardant ABS

   Temperature Accuracy

±0.5°C (±1°F)

Operating Humidity Range

0-100% RH (non-condensing)

Operating Temperature Range

10° to 35°C (50° to 95°F)

   Analog Output Scaling 

10° to 35°C (50° to 95°F) or 0° to 50°C (32° to 122°F), menu 

selectable* 

   Calibration Offset

Adjustable  ±9.9° (C or F) in 0.1° increments

   Setpoint Range

Minimum to Full Scale in 1° (C or F) increments

*  If the 0° to 50°C (32° to 122°F) scaling range is selected, the device’s operating temperature range still applies.

One side of the transformer secondary is connected to the signal common, so an isolation transformer or 

dedicated power supply may be required.

RTD/Thermistors in wall packages are not compensated for internal heating of the product.

EMC Special Note: Connect this product to a DC distribution network or an AC/DC  power adaptor with proper 

surge protection (EN 61000-6-1:2007 specification requirements).

B  = 100R Platinum, RTD
C  = 1k Platinum, RTD
D  = 10k T2, Thermistor
E  = 2.2k, Thermistor
F   = 3k, Thermistor
G  = 10k CPC, Thermistor
H  = 10k T3, Thermistor
I    = 1k Balco (nickel-iron) RTD
J   = 10k Dale, Thermistor
K  = 10k w/11k  shunt,Thermistor
M = 20k NTC, Thermistor

N  = 1800 ohm TAC, Thermistor
Q  = 1uA/C, Linitemp
R  = 10k US, Thermistor
S   = 10k 3A 221, Thermistor
T   = 100k, Thermistor
U  = 20k “D”, Thermistor
W = 10k T2 high accuracy, Thermistor
Y = 10k T3 high accuracy, Thermistor
Z = 10k E1, Thermistor
CC= 15k, Thermistor

Summary of Contents for TWS Series

Page 1: ...tion 2 2 point Cal Validation Option S CE A Specifications Input Power 15 30VDC 24VAC 100mA max Outputs Switch selectable amp or volt If volt is selected the configuration menu allows selection between 0 5V or 0 10V Physical UL 94 V O fire retardant ABS Temperature Accuracy 0 5 C 1 F Operating Humidity Range 0 100 RH non condensing Operating Temperature Range 10 to 35 C 50 to 95 F Analog Output Sc...

Page 2: ...to avoid damage to the circuitry that is not covered under the factory warranty 1 Locate the tab at the top of the sensor housing Using only the minimum required force press this tab down and pull the cover outward from the top Set the cover aside Housing Top View Tab 2 Remove the backplate by unfastening the sensor from the bottom of the backplate and pivoting the sensor outward 3 Punch out wire ...

Page 3: ...or 24VAC DIGITALCONTROL TempInput TempSetpointInput Thermistor RTDInput Thermistor RTDInput Temp Output GND Temp Setpoint Output RTD Thermistor Output RTD Thermistor Output 7 Install and configure the sensor NOTICE RISK OF EQUIPMENT DAMAGE Ensure that the output selection is correct before applying power Failure to follow these instructions may result in permanent equipment damage TEMP SENSOR AMP ...

Page 4: ...º F U N I T S º F º C S E T P O I N T 7 0 F S E T P O I N T 7 0 F SETPOINT MODE Enter by any keypress when RHYes No jumper is inYes position NORMAL MODE Output Scaling does not affect LCD display Only for switch in Volts position CONFIG CAL MODE Enter by any keypress when Run Cal jumper is in CAL position Press to change press Select button to select Press to change press Select button to select O...

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