TEREN DPTM Operation Manual

1 DPTM Mini Differential Pressure Transmitter Note: For zero center models, add “Z” at the end of the model. For example, DPTR*1*Z, means the range is -30-0-30.Only 1~6 have this selection. Applications & Features  Very compact size, good for application in small equipments and instruments  Apply high accuracy MEMS sensor and digital technologies, can measure differential pressure on equipments such as isolator, clean bench and cabinet for pharmaceutical, biological safety and medicine research, microelectronics, hazardous chemicals operation and various laboratories  Multiple ranges, engineering units and outputs  Good performance, accuracy 1.0% or 0.5%FS selectable  Function keys: zero reset, unit select, response time set, etc Specifications Medium: non-combustible, non-corrosive air, insensitive to moisture, dust, condensation and oil Temp.: Working,-20~70°C; Medium, 0~60°C; Compensation, 0~50°C； Storage,-30~70°C Working Pressure: overload 10xFS, burst 15xFS Performance: Accuracy %FS ±1.0% ±0.5% Thermal effect %FS/°C(Zero/FS) ±0.05/0.08 ±0.03/0.04 Stability %FS/Year ±0.5 ±0.3 Response Time: 0.5/1/2/5s, can be set by keys Process Connection: 5mm ID tubing, two sides selectable Output: 0~10V, 4~20mA (2 wires), RS485 selectable Output Load: ≤500Ω (current), ≥2kΩ (voltage) Power: Current: 18.5~35VDC (RL=500Ω), 8.5~35VDC (RL=0Ω) Voltage: 16~28VAC/ 16~35VDC Zero reset: outside key to operate easily Housing: Fire-proof ABS+PC Protection: IP30(except terminals) Weight:110g Approval: CE Models Model DPTM DP Transmitter Accuracy 0 ±1%FS 1 ±0.5%FS Range x Range selection Output 1 0~10V 2 4~20mA(2 wires) 8 RS485/Modbus Nozzle 0 Horizontal 1 Vertical Measuring Ranges Code Pa Code Pa 0 0~25 5 0~1000 1 0~60 6 0~2500 2 0~125 7 0~5000 3 0~250 8 0~10000 4 0~500 For zero center models, add “Z” at the end of the model. For example, DPTM*1**Z, means the range is -30-0-30.Only 1~6 have this selection. Connection Different models have different electrical terminals. Please wire specific model according to the wiring diagram on the front cover. Setting 1. The zero-reset button is for resetting zero drift. Press and hold the button for 5 seconds to complete the operation. 2. The RS485 terminating resistor (120Ω) is selected by the toggle switch. When “J8” is ON, the resistor (120Ω) is applied. 3. Response Time select: switch the S2 to different positions for 0.5s,1s, 2s and 5s according to the diagram below. Note: since the time is not fully synchronized, the actual response time is 1~2 times set time. ON 1 2 ON 1 2 ON 1 2 ON 1 2 0.5S 1S 2S 5S S2 RS485 terminal resistance (inside product) ON 1 J8 RS485 9600,8,N,1 Slave Add.= 1 3 4 B 1 2 A V 1 2 POWER SUPPLY 24VDC A 3 4 POWER SUPPLY 24VDC/AC 1 2 POWER SUPPLY 24VDC/AC Current Output 4-20mA RS485/Modbus RTU Output Voltage Output 0-10V zero-reset

2 Installation Figure 1 ● Installation: it is recommended to be installed vertically with the pressure ports downwards, as shown in figure 1. ● Pressure connection: connect the tube to the two pressure ports correctly, making sure to air-tighten to prevent leakage. ● Electrical connection: wire correctly according to the wiring diagram on the front cover. Zero reset & Calibration ● Due to different environment and sensor characteristics, after long term of using, the sensor’s accuracy maybe drift. The transmitter should be zero reset after initial installed to meet the specified accuracy. It is better to be “zero reset” after the initial 7 days continuous working. Usually it need to be zero reset periodically in every 6-12 months’ working. ● Zero reset: keep the high (+) and low (-) pressure ports unconnected in stable air, or directly connect the two, press the button “ZERO” for 5s. It means to remove the zero drift of the transmitter in order to improve the accuracy. It is recommended that this operation to be done periodically. ● Initial zero reset: when initial power on, it should be zero reset after fully warm-up and stable, to meet the specified accuracy. ● Long term zero drift & reset: It may have long term zero drift after continuous working; customers can reset it periodically. ● Re-calibration & zero reset: when re-calibration needed, zero reset should be done first. A qualified standard manometer is needed for re-calibration operation. Attention It should be power OFF during installing and wiring. When using 24VAC, it is strongly recommended to power the unit with independent transformer. If sharing a 24VAC transformer with other equipments such as controllers, transmitters or actuators, please make sure the terminals 24V and GND are connected correctly. Otherwise, it may reduce serious damages. Warranty ● It has limited warranty for eighteen (18) months after the production date. ● It does not extend to any unit that has been subjected to misuse or accident. ● It is, in any event, strictly limited to the replacement or repair of the product itself. Shenzhen TEREN Control Technology Co. Ltd. Add: 3F, 2nd Industrial Zone, Nankeng, Longgang District, Shenzhen,Guangdong,P.R.CHINA Tel: 0755-23935155 Fax: 0755-23935156 web: www.teren.com.cn TEREN website Alibaba shop