Product details

Origin:USA

Brand:bently

Product ID:3500/50E

product description 

Digital Tachometer

DescriptionThe 37506A Digital Tachometer can be used as a stand-alone unit for speedindication 

or in conjunction with any permanently installed monitoring systemas a remote speed indicator. It 

is often used when a machine is controlledlocally and speed indication is required at the machine, 

but either apermanent monitoring system is located some distance away (e.g. in acontrol room) 

or no permanent monitoring system is installed.A compact unit, the digital tachometer contains its 

own power supply, whichpowers either a Tach Driver (+15 Vdc) or Proximitor® (-18 Vdc). It 

alsoaccepts signal and common wires from an externally-powered Keyphasor®(such as may be 

available when a permanent monitoring system is installed).

Specifications

Inputs

l Signal: From any Bently Nevada Proximitor® or Tach Driver.

l Threshold: Automatic adjustment

l Hysteresis: 0.4 Vdc to 3.1 Vdc, field-adjustable.

l SlewRate:10,000 rpm/s accelerating,5,000 rpm/s decelerating.

l Events Per Turn: 1 to 99, field-programmable.

l Power: 95 to 125 Vac, 60 Hz (250mA)195 to 250 Vac, 50 Hz (125 mA)

Outputs

Display

l Type: 5-digit vacuum fluorescent, 7 segments per digit.Digit height is 15.2 mm (0.6 in).

l Range: 50 to 99,999 rpm

l Resolution: 1 rpm

l Accuracy: Adjustable to ±1 rpm.

l Proximitor®/TachDriver Power:Option selectable for -18 Vdc at20 mA maximum for Proximitor®,

+15 Vdc at 30 mA maximum forTachometer Driver.