Order pick-ups are not available

X
Menu
Cart
X

Search Website

QUICK ORDER PRODUCTS

If you know the product code enter it here  

  1. Home
  2. Laboratory
  3. Hanna Instruments
  4. Minicontrollers
  5. HI8711 pH Analog Controller with Dual Output and Self-Diagnostic Test

HI8711 pH Analog Controller with Dual Output and Self-Diagnostic Test

HA-HI8711

HI8711 allows the selection of two set points with two independent outputs for acid and alkaline dosages.

Brand: Hanna

Learn more

Select your options below
Enquire about this product
Product CodeProduct Product Description Price (Excl gst) Qty Add
HA-HI8711 HI8711 pH Analog Controller with Dual Output and Self-Diagnostic Test HI8711 pH Analog Controller with Dual Output and Self-Diagnostic Test Login for price  

Go to checkout

X

Stock Request

Submit your details.
You are enquiring about HI8711 pH Analog Controller with Dual Output and Self-Diagnostic Test

Pricing Request Starts Here

Submit your details to receive a quote.
You are enquiring about HI8711 pH Analog Controller with Dual Output and Self-Diagnostic Test

Fail Safe Alarm System
Hanna’s exclusive Fail Safe Alarm System protects against problems caused by power supply failure or signal interruption, which are typical risks in industrial environments. An alarm condition is indicated by a red LED, located directly on the front panel of the controller.

Self-Diagnostic Test
Built-in autodiagnostic functions enable the user to check and troubleshoot any malfunctions. The functions are made via front panel keys to isolate the cause of malfunction whether it is due to pH electrode contamination, internal offset circuit or the amplifier circuit.

Overtime Dosing Protection
The HI8711 incorporates adjustable overtime dosing protection from 5 to 60 minutes. If dosing exceeds selected time, the alarm will be triggered and the dosing contact will deactivate. This feature can be activated or deactivated.

Matching Pin Connection
Supports potential matching pin connection to avoid typical problems caused by grounding loop current, such as progressive damage of the electrode, fluctuating measurements, and poor process regulation.

Output and Input Connections
Each model accepts either a direct input from a pH or ORP electrode or from a transmitter through 4-20 mA input. The instrument also provides ±5V power output and input terminals for amplified electrodes. Moreover, you can choose the output configuration for connecting a recorder or a PLC, between 0-20 or 4-20 mA.

Robust Design
A removable, transparent splash-proof cover protects the front panel.

pH

pH Range 0.00 to 14.00 pH
pH Resolution 0.01 pH
pH Accuracy ±0.02 pH (0 to 100 °C); ±0.05 pH (-20 to 0 °C); ±0.5% (input from transmitter)
pH Calibration offset: ±2 pH with OFFSET trimmer; slope: 80 to 110% with SLOPE trimmer
pH Temperature Compensation fixed or automatic with Pt100, from -20 to 100°C (-4 to 212°F)
pH Input impedence high impedance 10¹² Ohm; reference and matching pin inputs are available; 4-20 mA

Process Control Meter

Alarm Relay Set Point 1, isolated, 2 A, max 240 V, resistive load, 1000000 strokes (not fuse protected)
Alarm Relay Range 0.2 to 3.00 pH
Dosing Control OFF/AUTO/ON with selection switch
Over Dosing Control adjustable, from 5 min to 60 min with knob or disable by wire strap - on rear panel
Backlight continuous on
Voltage Output ±5 Vcc; 150 mA max load for amplified electrodes
Enclosure flame retardant ABS body and front panel; transparent splash-proof front cover
Panel Cutout 141 x 69 mm (5.6 x 2.7’’)
Recorder Output 0-20 mA or 4-20 mA (isolated)
Set Point 2, isolated, 2 A, max 240 V, resistive load, 1000000 strokes (not fuse protected); range: alk. set: from 0.00 to 14.00 pH; acid set: from 0.00 to 14.00 pH
Power Supply 115 VAC ±10%; 50/60 Hz
Environment -10 to 50°C (14 to 122°F); RH max 95% non-condensing
Weight 1 kg (2.2 lb.)
Ordering Information The HI8711 is supplied complete with mounting brackets and instructions.