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HI 8931 Panel Mounted Conductivity Controller

• Single set point with user-selectable dosage. Dosing up or dosing down can be selected by connecting a jumper on the back panel.
• Built-in auto-diagnostic function for offset and slope to determine whether a malfunction originates in the instrument by isolating the probe and transmitter.
• Using HI 8931 in conjunction with a conductivity transmitter (HI 8936) will assure you of a strong, interference-free signal at distances up to 165' (50 meters).
• Available in four models with different measurement ranges to suit your individual application from deionized water to brine.
• Recorder output is selectable from either 0 to 20 mA or 4 to 20 mA (not isolated).
• 4 to 20 mA input from the conductivity transmitter.
• LED indicators will positively identify whether the controller is in operational mode or in selection mode.

Specifications:

	HI 8931AN	HI 8931BN	HI 8931CN	HI 8931DN
Range:	0.0 to 199.9 mS/cm	0.00 to 19.99 mS/cm	0 to 1999 µS/cm	0.0 to 199.9 µS/cm
Accuracy:	±2% of F.S.	±2% of F.S.	±2% of F.S.	±2% of F.S.
4-20 mA Input From Transmitter:	HI 8936A	HI 8936B	HI 8936C	HI 8936D
Temperature Compensation:	Fixed or automatic from 32 to 122°F (0 to 50°C) with a ß of 2%
Readout:	4-digit LCD plus graphic symbols
Recorder Output:	0 to 20 mA or 4 to 20 mA (not isolated)
1 Set Point Relay:	Isolated, 2A, Max. 240V, resistive load, 1,000,000 strokes
1 Alarm Relay:	Isolated, 2A, Max. 240V, resistive load, 1,000,000 strokes
Power Supply:	110/115V; 50/60 Hz or 220/240V; 50/60 Hz
Panel Cutout:	5.6 X 2.7" (141 x 69 mm)
Environment:	14 to 122°F (-10 to 50°C)
Weight:	2.2 lbs. (1Kg)
Enclosure:	DIN 43 700 5.7 x 2.8" (144 x 72mm) in black anodized aluminum. Front & back with shockproof ABS plastic & a transparent cover.

 

Cat. No.	Model/Description	Price
13E23	HI 8931AN Panel-Mounted Conductivity Controller	N/A
13E24	HI 8931BN Panel-Mounted Conductivity Controller	N/A
13E25	HI 8931CN Panel-Mounted Conductivity Controller	N/A
13E26	HI 8931DN Panel-Mounted Conductivity Controller	N/A