Max Machinery 290 Series Frequency (269, 294 and 295) - Manual (Page 4)

4 IH 295-000-350 • rev. 6/2011 • ©2010-11 Max Machinery, Inc.
an ISO 9001:2008 certified company
Transmitter Specifications
Supply Voltage 5-26 Vdc
Supply Current 25-30 mA typical
Output (5.0 Volt Supply) No Load 0.00 / 4.80 Volts
(TTL and CMOS compatible) 2.5K Load to Common 0.00 / 4.60 Volts
2.5K Load to +5 Volts 0.25 / 4.80 Volts
Short Circuit Current (1) 45 mA
Output Impedance 100 Ω
Rise/Fall Time 0.2 μSec
Output Update Rate (2) 1 ms
Min/Max Frequency 0-60 kHz
Resolution 1 - 1000 pulses/rev, Single Phase
1 - 500 pulses/rev, Quadrature
Ambient Temperature Range Transmitter (Storage)–40ºC to 85ºC (–40ºF to 185ºF)
Transmitter (Operation) (3) –40ºC to 80ºC (–40ºF to 175ºF)
Maximum Temperature, Process Fluid
(20ºC Ambient, 5V supply) 295 / 294/269-x0x-xxx Standard Model 105ºC (220°F)
294/269-x1x-xxx High Temp Model 180ºC (355°F)
295-x1x-xxx High Temp Model — 2 part model 155ºC (310°F)
294/269-x2x-xxx Ultra High Temp Model 232ºC (450°F)
295-x2x-xxx Ultra High Temp Model — 2 part model 225ºC
(435°F)
Anti-dither Range Software selectable from 1-100% of 1 revolution.
Default values: 50% Single Phase
2% Quadrature
Signal Filtering Software selectable from 1ms to 250ms time constant
( 1) Continuous Short Circuit is not recommended. The output current should not exceed 10 mA
(2) Events are seen as output transitions 1 ms after they occur
(3) Temperature of metered fluid will affect transmitter temperature, see graph