cytiva PRT-DPM-3T Instructions For Use Manual

Midjet pressure display unit

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MidJet pressure

display unit

Instructions for use

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Page 1 MidJet pressure display unit Instructions for use cytiva.com...
Page 2: Table Of Contents
Table of Contents Table of Contents Introduction ............................3 Pressure display unit ........................... 6 Setup and operation ..........................8 Maintenance and calibration ......................12 Specifications ............................15 Parts and accessories .......................... 16 Index ................................18 MidJet pressure display unit Instructions for use 18117465 AD...
Page 3: Introduction
If you use the pressure display unit and pressure transducers in a manner not speci- fied by Cytiva, you may impair the protection provided by the pressure display unit and pressure transducers.
Page 4 1 Introduction Warnings, cautions, and tips This user guide uses symbols and blocks of text to provide you with safety warnings and other impor- tant information: WARNING WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury. It is important not to proceed until all stated conditions are met and clearly understood.
Page 5 Product labeling The pressure display unit labeling, located on the back of the housing, provides key identification and specification information (see the Figure below). Figure 1.1: The PRT-DPM-3T pressure display unit labeling MidJet pressure display unit Instructions for use 18117465 AD...
Page 6: Pressure Display Unit
User guide • Certificates of compliance for pressure display unit System overview The PRT-DPM-3T pressure display unit includes three pressure displays and a temperature display (see the Figure below). Figure 2.1: The PRT-DPM-3T pressure display unit Transducers Each pressure display unit includes a set of pressure tranducers. Additional pressure transducers can be purchased separately in packs of one or two.
Page 7 2 Pressure display unit WARNING If you autoclave or use hot caustic cleaning solution (0.5 N NaOH) to clean the pressure transducers, the transducers can fail causing leaks of potentially hazardous cleaning or process fluid and bodily harm. To avoid leaks of potentially hazardous solutions, do not autoclave the pressure transducers.
Page 8: Setup And Operation
Temperature probe (thermocouple) Monitoring the temperature in the reservoir or permeate collection vessel can be helpful. Pressure display unit PRT-DPM-3T includes a temperature probe and LED temperature display that indicates the temperature in °C. CAUTION If you overtighten the locking nut when installing transducers using Luer-Lok connectors, you can damage the transducer.
Page 9 3 Setup and operation Tubing Pinch Retentate Clamp Permeate Temperature Line Probe Permeate Collection Vessel Cross-Flow Cartridge Feed Reservoir Permeate Port Blanked Off Transducer Feed Pump Signal Cable Pressure Display Unit Figure 3.1: Typical transducer placement in a cross-flow system Installing the transducers CAUTION The pressure display unit is calibrated at the factory with the...
Page 10 3 Setup and operation WARNING If a pressure transducer leaks, it can release potentially hazardous process or cleaning fluids and cause bodily harm. To prevent leaks and the release of potentially hazardous fluids, limit system pres- sure to 2 barg (30 psig), periodically check pressure transducer connections for proper assembly and wear.
Page 11 3 Setup and operation WARNING If water or other liquids enter the pressure display unit, equipment damage and electrical shock (bodily harm) can occur. Locate the pressure display unit where it will not be exposed to water and other fluids. Prevent water or other liquids from entering the unit. Tip: If the display does not illuminate when you power up the unit, or if one of displays does not seem to work properly, you may have to reset the system by switching it off and back on...
Page 12: Maintenance And Calibration
The LCD displays may have different internal appearances, but the model number, performance, and calibration procedure are the same. Calibration of the three-transducer pressure display unit (PRT-DPM-3T) Follow the steps below to calibrate the three-transducer pressure display unit: Equipment needed Gather these materials: •...
Page 13 4 Maintenance and calibration Removing the pressure display unit cover Follow these steps to remove the LCD display unit’s cover: Step Action Disconnect the power cord from the electrical power source. Remove the four screws that hold the rubber feet to the bottom of the cabinet, and remove the top half of the cabinet.
Page 14 4 Maintenance and calibration Assembly Follow these steps to assemble the pressure display unit after calibrating it: Step Action Power down the pressure unit and unplug its power cord. Decompress the transducer circuit and remove the pressure tester from the trans- ducers.
Page 15: Specifications
5 Specifications 5 Specifications Pressure display unit PRT-DPM-3T Size and dimensions Dimensions, approximate (W × D × H)—26 × 18.5 × 7.5 cm (10.3 × 7 × 3 in) Weight, approximate: 1.5 kg (3 lbs) Operating parameters Ambient operating temperature range: 5-50°C Recommended maximum operating pressure: 2 barg (30 psig) Accuracy: ±2 percent over the 15 psig range to which it is calibrated...
Page 16: Parts And Accessories
6 Parts and accessories 6 Parts and accessories Ordering parts Cytiva can supply you with spare parts and accessories for your pressure display unit (see the Table below). Table 6.1: Pressure display unit part numbers Code number Model number Description...
Page 17 50 ml/min with size 14 tubing and 140 ml/min with size 16 tubing); KMDG-2 MidJet accessory kit 56-4106-38 MDG-4SP Advanced MidJet system, includes: MDG-3SP basic MidJet system, PRT-DPM-3T pressure display unit with three pressure transducers 56-4106-53 PRP-09WM Peristaltic pump, Watson Marlow 323S, dual voltage...
Page 18: Index
8, where to install, Calibration, Product labels, Calibration of the three-transducer pressure Proper use of the pressure display unit, display unit (PRT-DPM-3T, Caution, Safety, 3, 5, 6, chemical compatibility, 3, Display unit accessories, cleaning solutions, Display unit ordering parts,...
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Page 20 © 2020–2021 Cytiva All goods and services are sold subject to the terms and conditions of sale of the supplying company operating within the Cytiva business. A copy of those terms and conditions is available on request. Contact your local Cytiva representative for the most current information.

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56-4106-11