Installation and Operating Instructions
Duct and Outside Air Humidity (H200-H300)
4 to 20mA or 0 to 5V Humidity Output with Optional Temperature Sensor
Building Automation Products, Inc., 750 North Royal Avenue, Gays Mills, WI 54631 USA
Tel:+1-608-735-4800 • Fax+1-608-735-4804 • E-mail:[email protected] • Web:www.bapihvac.com
9938_ins_hum_temp_duct_out_5_20
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rev. 02/15/18
Specifications subject to change without notice.
Overview
The BA/
(H200, H300) is a humidity transmitter which comes in 2% or 3% accuracies and an optional temperature sensor.
The temperature sensor can be either a Thermistor or RTD. It can be ordered for either Duct or Outside Air applications with
Weatherproof (WP), Weather Tight (EU), BAPI-Box (BB), or BAPI-Box 2 (BB2) Enclosures. The transmitter can be wired for
either a 0 to 5VDC output or a loop powered 4 to 20mA output.
Duct Unit Mounting
Mount at least 3 duct diameters from humidifiers in the center of the duct wall. Drill a 1 inch hole for the probe in the duct
and use two number 8 sheet metal screws to attach the sensor to the duct. Center the probe in its mounting hole. Be sure
that the foam seals the hole, do not over tighten the screws.
Mount in a permanently shaded area away from windows and doors. Do not mount in direct sunlight. Mount with the sen-
sor probe pointed down. Drill a hole large enough for your sensor cable through your mounting surface. Mount the unit to
the surface with the wiring knock out centered over the wiring hole. Pull the wiring into the unit and terminate using seal-
ant filled connectors. Best practice is to seal the wiring hole with caulk after the wiring is installed. Be sure that the foam
on the back of the unit makes a good weather tight seal.
Fig. 1:
Duct Humidity
in a Weatherproof
(WP) Enclosure
Fig. 5:
Outside Humidity
in a Weatherproof (WP)
Enclosure
Fig. 6:
Outside Humidity
in a Weather Tight (EU)
Enclosure
Fig. 7:
Outside Humidity
in a BAPI-Box (BB)
Enclosure
Fig. 8:
Outside Humidity
in a BAPI-Box 2 (BB2)
Enclosure
Fig. 2:
Duct Humidity
in a Weather Tight (EU)
Enclosure
Fig. 3:
Duct Humidity
in a BAPI-Box (BB)
Enclosure
Fig. 4:
Duct Humidity
in a BAPI-Box 2 (BB2)
Enclosure
Outside Air Mounting
