Introduction to the HMT140
8
VAISALA
Introduction to the HMT140
The Vaisala
HMT140 Wi-Fi Data Logger
measures relative
humidity and temperature using the connected probe and
analog signals – RTD, Voltage, Current Loops and Boolean
Contacts. It is powered with three 3.6 volt DC batteries (or
an optional 9-30VDC power supply), outputs data via
wireless transmission, and comes with or without an
optional LCD display.
The HMT140 supports several different signal measurements
(channels), which are monitored in viewLinc:
• Relative Humidity (RH)
• Temperature (T)
• Switch Contact
• Voltage and Current.
Channel types are set at the factory during time of order.
Other wireless parameters can be changed at a later date
using an HMT140 Configuration Cable and HMT140 Utility
software.
Models
The following HMT140 models and options are available:
•
HMT141:
Vaisala Humicap Humidity and Temp Probe
(RH/T)
•
HMT143:
Dual RTD Temperature Inputs w/5M Probes
(-90C to 90C)
•
HMT144:
Voltage Inputs (0-5 VDC)
•
HMT145:
Voltage inputs (0-10 VDC)
•
HMT146:
Current Inputs (0-20 mA)
•
HMT147:
Boolean Inputs
•
HMT148:
RTD Temperature Input w/5M Probe &
Boolean Input
HMT14
C
:
RTD Inputs (customer-supplied Probe)
HMT14
D
:
RTD and Current Inputs
HMT14
E
:
RTD and Voltage Inputs
(0-
5
VDC
)
HMT14
F
:
RTD and Voltage Inputs (0-10 VDC)
•
•
•
•
Summary of Contents for HUMICAP HMT140
Page 1: ...86 5 6 GUIDE Vaisala HUMICAP Humidity and Temperature HMT140 Wi Fi Data Logger M211488EN E...
Page 10: ...Regulatory Compliances 6 VAISALA...
Page 16: ...Introduction to the HMT140 12 VAISALA...
Page 26: ...Wiring Diagrams M211488EN E 23...
Page 56: ...Appendix Specifications and Troubleshooting 54 VAISALA HMT140 Dimensions Fixed Probe...
Page 57: ...M211488EN E 55 HMT140 Dimensions Remote Probe...
Page 70: ...www vaisala com M211488EN...
