Air Humidity Meter in a compact design / Modbus RTU interface /
measures air humidity, temperature / calculates the dew point and absolute humidity
The Air Humidity Meter measures air humidity and air temperature.The Air Humidity Meter calculates the dew point and the absolute humidity from these two values.The measurement data from the Air Humidity Meter are output via the Modbus RTU interface.This makes the Air Humidity Meter suitable for mass applications where the humidity and temperature must be measured quickly and easily.
Due to the compact dimensions, the Air Humidity Meter can be easily installed in control cabinets, on walls or in cavities.Optional filters protect the sensor element from the Air Humidity Meter from external influences such as moisture or dust.A simple cable connection creates the connection between the Air Humidity Meter and a Modbus master.The Air Humidity Meter can be used in conjunction with a Modbus display, a Modbus data logger or a paperless recorder.
Highlights
- Measuring range 0 … 100% RH
- Temperature measuring range -4 … 140° F, -20 … 60 ° C
- Modbus RTU interface
- Various filters optionally available
- compact pen sensor
- Semiconductor sensor element
- optionally with M8 cable socket
- 8.2 ft (2.5 m), 16.4 ft (5 m), 32.8 ft (10m) connection cable
Technical specifications
- Measuring range: temperature-4 … 140° F, -20 … 60 ° C
- Accuracy: ± 1.08° F (0.6 ° C) @ 50 … 104° F (10 … 40 ° C)
- ± 1.8° F (1 ° C) in the rest of the range
- Measuring range: humidity 0 … 100% RH
- Accuracy: ± 3% (10 … 90% RH)
- ± 5% (in the rest of the range)
- Interface: Modbus RTU
- transmission modes 8N1, 8N2, 8E1, 8O1
- baud rates 2400, 4800, 9600, 19200, 38400, 57600,
- 115200 kbit / s
- Power supply: 9 … 25 V DC
- input<0.5 W
- down when in contact with water: Electromagnetic compatibility EN 61000-6-2, EN61000-6-4, EN61010-1
- down when in contact with water: pollution degree 2
- installation category III: Overvoltage protection Max.50 V DC
- installation category III: operating altitude Max.200 m
- installation category III: Operating and storage conditions-4 … 140° F (-20 … 60 ° C) / max.95% RH
- installation category III: degree of protection IP65 (housing)
- installation category III — Dimensions: 3.39 x 0.49 inch (86 x 12.5 mm)
- installation category III — Weight: approx. 0.22 lb (100 g)
Delivery scope
- 1 x Air Humidity Meter PCE-P18S
- 1 x instruction manual
