FREQUENCY METER, TACHOMETER & RATE METER
MODEL Q2000H (3 1/2 digits) Q9000H (4-digits)
Replacement Model - INFCTRA
|
 |
|
OPTIONS 
Analog output for
user-selected span Single-setpoint
10 A relay Dual-setpoint 10
A relays Proportional 4-20
mA control Time-proportional
control
Parallel BCD output, isolated Liquid crystal
display (Q2000H) NEMA-4 splash-proof
lens coverThe Q2000H and Q9000H are frequency meter/tachometers with extensive zero and scale factor adjustment capability for direct readout in engineering units for RPM, flow and speed. Input frequencies can be as low as 100 Hz or as high as 20 kHz for the display maximum, which is 1,999 for the Q2000H and 9,999 for the Q9000H. Zero offset is available for use with transducers with a frequency output and a live zero. EASY TO INTERFACE The Q2000H and Q9000H are designed for easy interfacing to transducers with a frequency or pulse output. These include turbine flowmeters, passive magnetic pickups, and active proximity detectors with NPN, PNP or NAMUR (1 mA/3 mA) output. To accommodate different signal levels and provide noise immunity, the DC trigger level can be adjusted from 1 to +5 V, and two hysteresis levels are selectable. Signals as low as 15 mV p-p or as high as 130 V rms can be monitored directly. CONFIGURATION AND CALIBRATION The price of the Q2000H or Q9000H includes configu-ration and calibration, normally provided by an authorized Newport distributor. The units can also be configured and scaled in the field. Adjustments for zero, span, and trigger level are accessible from the front panel to allow final calibration or recalibration without removal of the meter from the panel. POWER AND DISPLAY OPTIONS Six types of meter power are available: 120 Vac, 240 Vac, 24 Vac, 5 Vdc, isolated 9-32 Vdc and isolated 26-56 Vdc. An LED display is standard. An LCD display is available with the Q2000H and is ideal for viewing in bright ambient light.
ANALOG OUTPUT OPTIONS An analog output which tracks the display is standard and is useful for driving a strip-chart recorder. An additional analog output can be provided by an optional vertical plug-in board. Available output signals are 0-5 Vdc, 0-10 Vdc, 0-1 mA (source or sink), and 4-20 mA (source or sink). The top and bottom of each output range can be scaled to fit a user-selected display span. CONTROL OUTPUT OPTIONS Additional outputs can be provided by a horizontal upper- board. Available options include single-setpoint control with one 10 A relay, dual-setpoint control with two 10 A relays, 4-20 mA proportional control (source or sink), time-proportional 2-A solid-state relay control, and isolated, parallel BCD output. For additional information, please refer to the QUANTA and Mechanical sections. SPECIFICATIONS
SIGNAL INPUT Configuration: Single-ended Input resistance: 150 kohm Maximum signal: 130 V rms Minimum signal, 10 mV hysteresis setting: 15 mV p-p, 100 Hz to 2 kHz FS, 30 mV p-p, 2 kHz to 5 kHz FS 90 mV p-p, 5 kHz to 20 kHz FS Minimum signal: 100 mV hysteresis setting,125 mV p-p, 100 Hz to 5 kHz FS,175 mV p-p, 5 kHz to 20 kHz FS Hysteresis: 10 mV or 100 mV Trigger level: 1 to +5 V with 100 mV hysteresis or0.1 to +0.5 V with 10 mV hysteresis Signal types: TTL logic, CMOS logic, open-collector, 2-wire NPN, 3-wire NPN, 3-wire PNP,2-wire NAMUR, passive magnetic,(see hookup diagrams)
ADJUSTMENTS Coarse scale factor: Nine ranges selectable via jumper Fine scale factor: Front-panel accessible potentiometer Hysteresis & trigger level: Two ranges selectable via jumper or at connecto Fine trigger level: Front-panel accessible potentiometer Zero offset: Front-panel accessible potentiometer NOISE REJECTION CMR: 120 dB,Dc to 60 Hz CMV: 1500 Vp per HV test, 354 Vp per IEC spacing ACCURACY AT 25°C Error, max: ±0.1% of full-scale frequency ±2 counts Reading tempco: ±0.01% of reading/°C Zero tempco: ±0.1 count/°C Step response: 3 s to 99.9% of span Warmup to rated accuracy: 10 min (Q2000H), 30 min (Q9000H) CONVERSION Technique: Dual-slope, average-value Signal integration period: 100 ms Read rate: 2.5/s DISPLAY LED: 0.56 in (14.2 mm) 7-segment, red LCD: 0.50 in (12.7 mm) 7-segment liquid crystal Symbols: 1.8.8.8 (Q2000H), 8.8.8.8 (Q9000H) Decimal-point positions: Three positions selectable by jumpers behind lens or at connector Overrange indication: Q2000H: Three least-significant digits blanked Q9000H, 10,000 - 19,999 counts: Four least-significant digits flash reading Q9000H, over 19,999 counts: All four digits flash zeros POWER AC voltages: 120, 240, 100 or 24 Vac +10%/15% AC frequency: 49-440 Hz DC voltages: 9-32 Vdc, isolated to 300 Vp; 26-56 Vdc, isolated to 300 Vp; 5 Vdc ±5%, non-isolated DC power consumption: 5 W max ENVIRONMENTAL Operating temperature: 0 to 60°C Storage temperature: 40 to +85°C Relative humidity: 95% at 40°C (non-condensing) MECHANICAL Dimensions: Newport DIN1A (1/8 DIN) case (See Mechanical section for drawings) Weight: 17 oz (480 g) Case material: 94 V-0 UL-rated polycarbonate  
HOME / PRODUCT GUIDE / TECHNICAL REFERENCE NEWPORT Electronics, Inc. (714) 540-4914 or Contact Us Copyright 1998, Newport Electronics, Inc. All rights reserved. |
