INSTALLATION GUIDE CURRENT MONITORING TM H970LCA TM 970LCA Split-Core Low Current 4-20mA & 0-5VDC DC Current Transducer Installer’s Specifications Technology Amperage Range Sensor Supply Voltage Supply Current Isolation Temperature Range Humidity Range Output Accuracy Open loop Hall effect 0 to 20/40/80 ADC (slide switch selectable) 15-30VAC/DC for 4-20mA output; 12-30VAC/DC for 0-5VDC output 35mA max. 600VAC rms -15° to 60°C (5° to 140°F) 10-90% RH non-condensing 4-20mA and/or 0-5VDC ±3% F.S. combined linearity, hysteresis, and repeatability The product design provides for basic insulation only. DANGER quick install HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH • • • • • Follow safe electrical work practices. See NFPA 70E in the USA, or applicable local codes. This equipment must only be installed and serviced by qualiﬁed electrical personnel. Read, understand and follow the instructions before installing this product. Turn oﬀ all power supplying equipment before working on or inside the equipment. Use a properly rated voltage sensing device to conﬁrm power is oﬀ. DO NOT DEPEND ON THIS PRODUCT FOR VOLTAGE INDICATION • Only install this product on insulated conductors. Failure to follow these instructions will result in death or serious injury. 1. Disconnect and lock out power to the conductor to be monitored. 2. Choose a location for the sensor. The monitored conductor must pass through the iris, and the sensor must be at least 1/2” from any uninsulated conductors. 3. Install the adjustable mounting bracket to the back of the enclosure using the included screws. 4. Connect supply voltage wires to the terminals marked Power (+) and Gnd (-). 5. Wire the output (mA or VDC) connections between the sensor and the controller. NOTICE • • • • 6. Snap the sensor over the conductor to be monitored and clip the assembly to the mounting bracket. This product is not intended for life or safety applications. Do not install this product in hazardous or classiﬁed locations. The installer is responsible for conformance to all applicable codes. Mount this product inside a suitable ﬁre and electrical enclosure. Wiring Example 7. Set the field-selectable switch to the desired amperage level (see page 2). Dimensions Removable Mounting Bracket 1.0” (25 mm) CONTACTOR 1.1” (26 mm) CONTROLLER Bracket can be mounted on either side for added installation flexibility. 0.8” (21 mm) 3.1” (79 mm) Analog Input 4-20mA DC Self-gripping Iris 2.8” (70 mm) 1.4” (36 mm) Ø = 0.3” (8 mm) 2.5” (64 mm) MOTOR Z203252-0E PAGE 1 Fan or Pump 3.0” (76 mm) ©2010 Veris Industries USA 800.354.8556 or +1.503.598.4564 / [email protected] Use DIN Rail Mounting clip (Veris part number AH01) to mount on standard DIN rail. 10101 Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Veris, and the Veris ‘V’ logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries. INSTALLATION GUIDE H970LCA TM Operation set-up and wiring The H970LCA is a current-sensitive device that monitors DC current (amperage) in the conductor passing through it. The unit combines a Hall Effect sensor with proven transducer circuitry, with a status output suitable for connection to building controllers or other appropriate data acquisition equipment operating at up to 30 volts. The H970LCA requires supply voltage to generate its output. Selectable amperage ranges and output types maximize the installation flexibility. To Load Amp Ranges 0-20 0-40 0-80 Controller must be programmed to account for the extra turns. e.g., if four turns pass through the sensor (as shown) the normal controller reading must be divided by 4. Gnd Power 15-24 VAC/DC Blink=Normal Off=No Power Solid=Overrange 0-20 0-40 0-80 Amperage Range Selector Switch Notes For load currents less than sensor minimum rating: 0-5 VDC Slide Switch Amp Ranges The H970LCA housing offers unprecedented mounting flexibility. The mounting bracket can be attached in three different places. Additionally, the bracket is compatible with the Veris AH01 DIN Rail clip, allowing DIN mounting. Wrap the monitored conductor through the center hole and around the sensor body to produce multiple turns through the “window.” This increases the current measured by the transducer. < 3.5 A (Sensor Min.) 4x To Load 4-20 mA Wiring Diagram Digital Control 1A (+) Power (-) GND 0-5 VDC 4-20mA AI To Load CAUTION Amp Ranges 0-20 0-40 0-80 To Load 4-20 mA 0-5 VDC Gnd Power 15-24 VAC/DC Blink=Normal Off=No Power Solid=Overrange RISK OF EQUIPMENT DAMAGE • Derate the product’s maximum current for the number of turns through the sensing window using the following formula. • Failure to follow these instructions can result in overheating and permanent equipment damage. Failure to observe the following can result in distorted product calibration: 1. Observe the arrow on the product showing orientation to current source. 2. Do not expose the product to current levels greater than the maximum amperage range. scaling 20mA/5VDC SENSOR OUTPUT Rated Max. Amps ÷ Number of Turns = Max. monitored Amps e.g. : 100A ÷ 4 Turns = 25 Amps max. in monitored conductor 4mA/0VDC 0A SENSED AMPS *Slide-Switch Selectable 20/40/80A* troubleshooting Problem Z203252-0E PAGE 2 Solution The LED is off and no signal is produced Verify that power is applied to PWR (+) and GND (-) terminals The LED is on solid and the output is at maximum Verify that the amperage range selection switch is in the proper position for the current applied to the conductor. ©2010 Veris Industries USA 800.354.8556 or +1.503.598.4564 / [email protected] 10101 Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Veris, and the Veris ‘V’ logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries.
* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project