Range

• pH: O to 14, optically isolated
• Temp: 5 to 248^o F (however most probes are 50 to 185^o F)
• ORP: -1,000 to +1,000 mV's, optically isolated

Alarm Contacts

• Two SPDT relays: 5A @ 30 VDC, 5A @ 125 VAC max., or 3A @ 250 VAC max.
• Hi/Low on - off function programmable with adjustable hysteresis or
  program for High and Low pulse signals to drive chemical metering pumps

Display

• Analog: Slide-in dial reversible O to 14 pH or +/- 1000 mV's
• Digital: Back lit 2X16 character alphanumeric LCD

Current Output

• 4 to 20 mA, non-isolated, internally powered Loop impedance: 350R max. @ 12V, 950W max. @ 24V

Accuracy: +/- 1%

Operating Conditions (environment for the instrument)

• Operating Temperature: 14 to 131^oF
• Relative humidity: O to 95%, non-condensing +/- 2% of scale

  pH sensors

ORP sensors

Power Requirements

• 12 to 24 VAC or 12 to 24 VDC, unregulated, 50-60 Hz, 10 W Max.

Materials

• Enclosure: ABS Plastic, 3.5" x 3.5" x 3" deep (1/4 DIN), NEMA 4X/IP65
• Keypad: Silicone rubber Panel and case gasket: Neoprene
• Window: Hard-coated Polycarbonate

Quality Standards

• CE, CSA, UL

Accessories:

• Splashproof back cover kit
• Mounting bracket
• Liquid Tight Connector Kit
• Retrofit Kit - used cutout for older Signet units