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FEATURES
- Process Meter (EN35P) & Process Meter with Excitation Voltage (EN35E)
- Low-cost Rrplacement for Newport models 202A-P and 202A-E
- 4/20mA, 0/20mA, 1/5V, 0/10V Ranges
- 115Vac Power
- Broad range adjustable scaling
Span: ±20 to 1,999 Counts
Zero: ±1000 counts - 2 year warranty
- Screw terminals connections
- 1/8 DIN Case
- Jumper selectable decimal point, polarity and LSD On/Off
OPTIONS - 9 to 32Vdc power
- 230Vac power
DESCRIPTION
This model is a low cost 3½ digit (±1,999 count) digital process meter accepting DC Voltage or current loops typically supplied by transducers. This meter fits a standard 1/8 DIN cutout (92mmX45mm) and are direct replacements for Newport model 202A-P and 202A-E with the exception of case length. 115Vac power is provided standard with 230Vac and 9 to 32Vdc power available as options. Broad range scaling and zero offset allow these meters to display directly in engineering units. Decimal points, Ploarity (- or none) and LSD on/off (1,999 or 199 display) are selectable by jumper on the display board.
Model EN35P is a process indicator only while model EN35E provides the additional feature of dc excitation voltage output. This output may be used to provide transducer power in a two to four wire configuration. High quality construction and conservative design makes this display the choice for industrial applications. A 2 year warranty is standard.
*Also available in 4½ digit
Signal Input
| DC Voltage Ranges | ||||
| Range | 0 to 5V | 0 to 10V | 1 to 5V | 1 to 10V |
| Maximum Input | 250V | 250V | 250V | 250V |
| Input Resistance | 1 Mohm | 1 Mohm | 1 Mohm | 1 Mohm |
| Bias Current | 5pA | 5pA | 5pA | 5pA |
| DC Current Loop Ranges | ||||
| Range | 0 to 20mA | 4 to 20mA | ||
| Maximum Current | 55mA | 55mA | ||
| Input Resistance | 13 ohm | 13 ohm | ||
| Bias Current | 50pA | 50pA | ||
| Burden Voltage | 200mV | 200mV | ||
INPUT CONFIGURATION
Configuration..................................Single Ended, bipolar
Zero Offset Control..............................±1,000 counts
Span adjustment......................±20 to 1,999 counts
NOISE REJECTION
NMR, SIG HI to SIG LO..........................56db, 50/60Hz
CMR, SIG GND to SIG HI............120db, dc to 60Hz
CMR, SIG GND to PWR GND.............120db, dc to 60Hz
SIG GND to PWR GND.......................................1500 Vp per HV test
ACCURACY AT 25°C
Maximum error..............±0.05% of reading ±1 count
Span TempCo..............±0.03% of reading per °C
Zero TempCo..............±0.01% of offset per °C
Step Response............500ms
Warmup to rated accuracy..................2 min
ANALOG TO DIGITAL CONVERSION
Technique......................Dual-slope, average value
Polarity............................Automatic and selectable (- or none)
Integration period.................330ms
Read rate................................3 readings per second
DISPLAY
Type.........................................7-segment, red-orange LED
Height...........................................................14.2 mm (0.56")
Symbol........................................................................-1.8.8.8
Decimal Points.......3 positions programmable internally
or at connector J1
Overrange indication......3 least-significant digits blank
Least Significant Digit (LSD)....Controllable on/off on display board. Display: 1,999 or 199