Máy kiểm soát pH mini Hanna BL 931700-1

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Máy kiểm soát pH mini Hanna BL 931700-1


Sản xuất tại Romania

Model: BL931700-1

Nguồn điện 115V/230V

Giá: Liên hệ 0977.459.400

BL 931700 mini pH controller has been designed for easy, affordable installation in tight spaces to perform simple yet effective process control. As a result of its compact size, BL 931700 can be
installed right next to tanks or vats.
This versatile controller is ideal for a wide variety of applications, such as textiles, papers, photographic solutions, plating baths, chemicals and water treatment.
BL 931700 is provided with a selectable set point for acid or basic dosage. Measurements are directly acquired from a pH electrode in the range from 0 to 14 with a 0.01 pH resolution. Accuracy is ensured by the 2 point calibration, performed manually through trimmers on the front panel. You can also choose automatic or manual dosing mode with a switch on front panel. Manual control is particularly useful during maintenance operations, because it permits you to enable or disable the dosing relay according to your need.
The overtime control system advises you when the relay is active too long, helping to prevent overdosing. In addition, this model features a 4-20 mA analog output for recorder connection.

Two models are available, with different power supply input at 115/230 Vac or 12 Vdc.

Range   0.00 to 14.00 pH
Resolution   0.01 pH
Accuracy @ 25°C   ±0.02 pH
Calibration   manual, 2 point, with offset and slope trimmers
Dosing Relay   max 2A (fuse protected), 250 Vac, 30 Vdc
Dosing Selection   acid or alkaline
contact open=acid dosage=relay ON if measurement > set point contact close=alkaline dosage=relay ON if measurement < set point
Setpoint   adjustable from 0.00 to 14.00 pH
Overtime   adjustable, typically from 5 to approx. 30 minutes
Recorder Output   4-20 mA, accuracy ±0.20 mA, 500 Ohm max load
Input Impedance   102 Ohm
Power Supply   See Chart
Dimensions   79 x 49 x 95 mm (3.1 x 1.9 x 3.7’’)
Weight   See Chart

 Phụ kiện lựa chon (mua thêm)

HI 7004L 4.01 pH Buffer Solution
1 x 500 mL bottle
HI 7007L 7.01 pH Buffer Solution
1 x 500 mL bottle
HI 7010L 10.01 pH Buffer Solution
1 x 500 mL bottle
HI 70300L Electrode Storage Solution
1 x 500 mL bottle
HI 7061L General Purpose Cleaning Solution
1 x 500 mL bottle
HI 740146 Mounting Brackets for BL 931700 Housing
HI 710005 Power Adapter, 115 Vac to 12 VDC, US Plug
HI 710006 Power Adapter, 230 Vac to 12 VDC, European Plug
HI 1001 Flow-thru Monitoring pH Electrode with BNC Connection and 3 m Cable