Pneumatic Humidity Controller, number of pipes: 2, Action: Reverse. Overview Two-pipe, single setpoint, pneumatic humidistat used to provide proportional control of pneumatic valves on humidification or dehumidification systems. Features Durable HP970 series humidistat. Pilot operated for high capacity. Direct Acting (DA) and Reverse Acting (RA) models are available. Vertical or horizontal mounting. Backplate has molded air connections; no separate fittings needed. Variety of cover finishes and display styles available. Product Specifications Application Humidity Airflow Usage 0.011 scfm (5.2 mL/s) Dimensions (in.) 3 1/4 in. high x 2 in. wide x 1 5/8 in. deep Dimensions (mm) 83 mm high x 51 mm wide x 41 mm deep Maximum Safe Operating Pressure (psi) 25 psi Maximum Safe Operating Pressure (kPa) 170 kPa Temperature Range (F) 45 F to 125 F Temperature Range (C) 7 C to 52 C Comments Order Cover Separately Mounting N/S Approvals, Underwriters Laboratories Inc. N/S Approvals, Canadian Standards Association N/S Shipping and Storage Temperature Range (F) -30 to +150 F Shipping and Storage Temperature Range (C) -34 to +66 C Approvals, Factory Mutual N/S Connection Size (in.) N/S Differential Pressure Range (psi) N/S Differential Pressure Range (kPa) N/S Approvals, NEMA Standard N/S Action Reverse Acting Setpoint Single Number of Pipes 2 Scale Markings 65 to 95% RH Changeover Pressure (psi) N/S Changeover Pressure (kPa) N/S Mainline Pressure Range (psi) N/S Capacity N/S Control Range (fpm) N/S Control Range (m/s) N/S Number of Sensor Inputs N/S Remote Control Point Adjustment N/S Approximate Throttling Range, Midscale (psi) N/S Approximate Throttling Range, Midscale (kPa) N/S Throttling Range (%RH) 3 to 15% RH