CAT M. Zipperer Micrometering pump HPLH 20 PF pulse free 70980-0000

The pump HPLH PF "pulse free" employs two independently controlled pump heads. The result is a pulse-free flow without the need for secondary pulse dampeners.
Unlike syringe pumps the flow is continuous without the need for refill cycles or valve switching. Apart from separate housing chambers for pumps and PC board, this pulse-free pump features the same performance as the standard HPLH pumps. The pump has a user interface for fast and easy numeric input of all relevant parameters e.g. volume, flow-rate, flow direction and time.
When detached from the pump housing it can be used as a remote controller.


The system consists of an ergonomic pump housing and a detachable programming and operating unit with key-pad and alphanumeric display.  All relevant parameters, e.g. volume, flow-rate and flow direction, are set via the key-pad on the control unit, which can be used remotely from the pump. The key-pad has 3 function- and 2 hot-keys, plus an analogue encoder wheel for fast data entry, enabling intuitive adjustment of the set values. The back-lit LCD shows both set and actual volumes, flow-rate, and other functions.
A choice of units of volume, flow-rate and specific weight can be pre-programmed, e.g. µl, ml, mg, g, µl/s, ml/m. The PCON C controller has a RS232 interface as standard (1200-4800,8,N,1) and the analogue and digital I/O ports provide full flexibility.
The optional easy-to-use "LabControl Plus" software can create multi-step programs transferable to the pump controller to provide various control functions. Program parameters such as flow-rate, volume and time can be entered in dialogue for downloading to the pump. Also, various data processes can be carried out such as evaluation of experimental data and generation of hard-copies.
Connection to the analogue input allows the pre-programmed flow-rate to be overridden by a voltage or current signal. The analogue output (0-10 V and 0-24 mA) can then be used to record and read out the actual flow-rate.
The pump heads are encased in robust stainless steel bodies and are available in 20 µl, 200 µl, 400µl and 1000 µl stroke volumes. They are also available with or without piston rinse port. The models "VCS" have a rinse port integrated into the ceramic cylinder, no piston sealing is necessary.
Pumps with built-in rinse pump for piston rinsing are available.
All wetted parts are made of ceramic (99,7% Al₂O₃), PTFE or ETFE
 
The pumps have incorporated software programs for many applications:

• STANDARD DISPENSE - dosing of a preset volume
• DILUTOR - diluting of a solution
• PIPETTE - simulation of a pipette
• DELAYED DISPENSE - an electronic dropping funnel

Applications:

• precise dosing of a set volume
• manual dispensing
• time-controlled dispensing
• titrating
• diluting
• regulated drop-dispensing
• sampling with and without an air-segment

 
 
Technical Data of HPLH PF Pumps:
 

Model HPLH	HPLH PF20	HPLH PF200
Piston diameter	4 mm	6 mm
Maximum flow rate	10ml/min	100ml/min
Minimum step volume	2 µl	20 µl
Min. continuous flow rate	30µl/min	0.3ml/min
Max. counter pressure *	5 bar	5 bar
Piston rinse port	yes	yes
Adjustment of flow rate	digital	digital
Adjustment of volume	digital	digital
Accuracy EV %	better than 1 %	better than 1 %
Precision CV %	better than 0,5 %	better than 0,5 %
TTL inputs	yes	yes
analogue current input   0-24 mA, adjustable	yes	yes
analogue voltage input     0-10 V, adjustable	yes	yes
analogue current output  0-24 mA	yes	yes
analogue voltage output  0-10 V	yes	yes
serial interface RS 232	yes	yes
Time programming	yes	yes
Minimum delay time in delay mode	1 sec	1 sec
Maximum delay time in delay mode	100 h	100 h
minimum flowrate in delay mode	2 µl/100h	20 µl/100h
Power supply	24 V DC	24 V DC
Dimensions W x H x D (mm)	190x170x200	190x170x200
Order number	70980-00	70985-00
Order number for pump With integrated rinse pump	61786-00	61788-00
Model HPLH	HPLH PF20	HPLH PF200

* depends on viscosity of the media and flow-rate
 
Powered by a stabilised 24V power supply, to be ordered separately, part no. 60732-00