ORP Controller and Pump 230V BL7917-D

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List Price: $795.00

Clarkson Price: $715.50

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Clarkson Catalog Number: BL7917-2

Manufacturer: Hanna Instruments

Manufacturer Catalog Number: BL7917-2

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Clarkson BL7917-1

ORP Controller and Pump 115V BL7917-U

Hanna Instruments BL 7917-1 and BL 7917-U

ORP controller and dosing pumps in one compact unit.
±5 mV accuracy with unbeatable performance.
Isolated 4 to 20 mA recorder output.
Proportional dosing slows the pump down when the measured ORP level approaches the set value, to avoid over dosage of oxidizing or reducing agents.
Alarm contact is activated whenever the ORP reading varies more than 200 mV from the set point.
Auxiliary contacts allow users to attach a mixer or priming pump that is activated only when the pump is dosing
PVDF, FPM/FKM and PTFE materials are used for all parts that come into contact with liquid.

The controller/pump is enclosed in a modular housing for maximum protection. The pump utilizes a one-piece polypropylene, injection-molded housing. Since there are no joints or screws holding different

sections of the housing together, the case is extremely rugged and sturdy. This series of instruments will mount easily in your plant using a minimum of wall space. The controls and pump head are located in the

front to allow easy access.

Specifications

Range		-999 mV to +999 mV
Resolution		1 mV
Accuracy		±5 mV
Flow Rate		13.3, 11.7, 10.1, 9.0, 7.8 (LPH)
Input Impedance		10¹² Ohm
Dosage		proportional, oxidizing or reducing, user selectable
Recorder Output		4-20 mA (isolated)
Dosing Contact		1 isolated contact, 2A, Max. 240V, resistive load, 1,000,000 strokes
Alarm Contact		1 isolated contact, 2A, Max. 240V, resistive load, 1,000,000 strokes
Power Supply		BL 7917-1: 115V ±15%; 50/60Hz (40W) BL 7917-2: 230V ±15%; 50/60Hz (40W)
Environment		0 to 50°C (32 to 122°F); RH max 95% non-condensing
Dimensions		221 x 142 x 181 mm (8.7 x 5.6 x 7.1')
Weight		5 kg (11 lb.)

Solutions
HI 7020L	ORP Test Solution at 200/275 mV (@20°C) 1 x 500 mL bottle
HI 7091L	Reducing Pretreatment Solution 1 x 500 mL bottle
HI 7092L	Oxidizing Pretreatment Solution 1 x 500 mL bottle
Accessories
HI 8427	pH and mV Precision Simulator
HI 931001	pH and mV Precision Simulator
HI 721101	Pump head, O-ring, screws (6 pcs) and washers (6 pcs)
HI 721102	Discharge valve assembly
HI 721103	Suction valve assembly
HI 721004	Injection Valve Assembly
HI 721005	Foot Valve Assembly
HI 721008	Ceramic weight

Order Information:
BL 7917-1 is supplied with discharge and suction valves, polyethylene tubing, 115V power cable and instructions.
BL 7917-2 is supplied with discharge and suction valves, polyethylene tubing, 230V power cable and instructions.

Downloads

Manual: (Download)