Model 6020 Advanced Dewpoint Hygrometer User Manual

This manual should be kept with the Model 6020 Please read this manual carefully from the beginning. You must observe the safety information on page 3 before installation. Document Reference: 1931 - Issue 8 - 21rd December, 2023 © Alpha Moisture Systems Ltd.

General Information Safety Information User Interface and Controls Quick Start Guide Outline Specification 5.1 Limits 5.2 Enclosure DIN Style 6 Installation 6.1 Mechanical installation into a panel 6.2 Electrical installation 7 Installing the air/gas sampling system 7.1 Piping installation schematic 7.2 Piping schematic component index 8 Installing and commissioning the sensor 9 AutoCal Calibration (Sensor Ranges up to 0 C dewpoint) 10 AutoCal Calibration (Sensor Ranges up to +20 C dewpoint) 11 Entering numerical data 12 Hot keys 12.1 Lock Hot keys using Panel Function 12.2 Units Hot key 12.3...

General information The Model 6020 is the next level in online dewpoint hygrometry for multi-species gases and natural gas. With powerful functions and features available that allow the user to set detailed configurations and parameters for more continuous measurement control. This makes the Model 6020 the advanced choice with the following features and benefits: Large easy to read 5-digit LED display Four-button membrane keypad Six selectable engineering units Three hot keys to enable rapid access Two visual alarms LEDS AutoCal (Automatic Calibration) function to perform periodic auto-calibration...

Safety Information and Warnings These safety instructions and guidelines must be followed. The Model 6020 is designed to be connected to hazardous electric voltages (240V). The power supply must be protected by a 1 amp fuse. The Model 6020 must be earthed. Check to establish that all wiring and connections are not damaged. If damage is observed to any electrical wiring or damage to the apparatus they must not be connected to the power supply but returned to the supplier for rectification. Before powering up the unit, check that the connecting plugs at the back of the unit have been wired correctly....

User Interface and Controls Consists of a membrane keyboard with four user input keys and also four visual indication elements or windows: the primary five character LED, a single character secondary LED for units indication, two alarm LEDs and the access cover to the AutoCal potentiometer. Secondary Display Primary Display User Input and Hot Keys Alarm Indicators MODEL 6020 DEWPOINT HYGROMETER AutoCal potentiometer In normal operation, the Model 6020 will display the current moisture value of the connected sensor in the Primary Display. The engineering units are indicated in the Secondary Display....

Quick Start Guide Note: Your instrument has been calibrated by Alpha Moisture Systems to your specification. To get started quickly there is no need to go through all the menus on the Model 6020 at this stage. Follow these step by step instructions below for a fast set up and quick start to measuring. 1. 2. 3. 4. 5. Unpack the Control Unit and Sensor only when they are ready to install. Read the safety instructions in section 2. Make a location for the Model 6020 - For dimensions see section 6.1. Make ready and seal all pipework for sampling. Unpack and wire up the Model 6020 display unit, see...

Moisture Range and Units limits Upper Lower C °C dewpoint 20.0 -130.0 F- °F dewpoint 68.0 -202.0 P ppm(v) 23100 0.001 g g/m3 17 0.001 L lb/MMSCF 1000 0.001 = ppm(w) for air 23100 0.001 Temperature Range: Limited to Sensor range Electronics Sensor Mounting flange 144 x 72 mm and enclosure extends 108 mm deep from front of mounting panel but not including cabling needs.

6.1 Mechanical installation into a panel Make a cut-out in the donor panel 138.0 x 68.0 mm (DIN 43700). The maximum panel thickness is 8mm. If an effective IP65 weatherproof seal is required, the minimum recommended panel thickness is 2.5 mm. Pass the instrument case through the cut-out in the donor panel and attach the two retaining screws to the studs on either side of the case making use of the supplied gasket. Tighten the retaining screws onto the back of the donor panel until the instrument is clamped securely in position. The screws must be tightened sufficiently to affect a seal between the...

Coaxial Sensor Connection Cable Compensation Potentiometer Ferrite bead There are three banks of wiring connections points organised into groups named here as C1, C2 and C3. Connector C1 Analogue Output and Digital Communications Port • On first two pins on left is the 4-20 mA Analogue Output. • On the last three pins is the RS485 Digital Communications port. Connector C2 Alarms: Two independent SPCO volt free contacts rated 10A/240 VAC. Connector C3 Power Supply: Universal 90 – 250 VAC 50/60 Hz, or, 24 VDC version dependant on factory set option. Important Notes for both AC and DC powered units....

Installing the air/gas sampling system The piping installation schematic diagram (see section 7.1) shows all components that could be used in a dry gas measurement application. Not all the items shown will be required for every installation. Care should be taken to ensure that the sample presented to the measuring sensor is not contaminated with any component that will damage, contaminate or affect the sensor in a way that will impair the system accuracy. It is strongly recommended that the sample should not contain particulate matter, oil or other heavy hydrocarbon condensate. If these components...

Model 6020 7.1 Piping installation schematic 3 1 Main Process Line The sample point should be on the upper surface of the horizontal pipe, or from a vertical section of pipe, wherever possible. b. The sample tube should run upwards from the sample point. If this is not possible then an inspection port or drain tap should be installed at the lowest point in the system. 7.2 Piping schematic component index 1) Sample Isolation Valve – This is a recommended item as it allows access to the sample system without interrupting the main process line. 2) Sample Tube – This should be stainless steel for...