PC420

Vibration Transmitter with True Peak Output

Measurement range: 5 g to 20 g (acceleration)

0.5 ips to 50 ips (velocity)

Repeatability 2 %

Frequency range (±3 dB): 1 … 2000 Hz (acceleratio n)

3.5 … 2000 Hz (velocity)

Temperature range: -40 … +105 °C

Features

 Acceleration or velocity output units



True peak ou

tput



Corrosion re

sistant

 Hermetic

seal

 ESD, overload and reverse wiring protec

tion

Benefits

 Provides continuous trending of overall

machine vibration



True peak is useful for detecting hi

freque

ncy impacts on reciprocating machin

ery



Can help guide maintenance in prioritizi

ng the

need for

rvice

 Helps notify of changing equipment condition

The 4-20

mA output of this sensor series is proportional to the true peak acceleration or velocity vibration. An

output of 4 mA indicates no vibration; a level of 0 ips for velocity output models; a level of 0 g for acceleration

output models. A full-scale reading of 20 mA indicates that the maximum range of vibration is present.

Specification

Dynamic specifications

Full scale, 20 mA ±5 %: see table 1

Frequency range: ±10 % 10 … 1000 Hz

±3 dB 4 … 2000 Hz

Repeatability: ±2 %

Transverse sensitivity, max.: 5.0 %

Electrical s

pecifications

Supply voltage

(at sensor terminals):

10 … 30 VDC

Loop resistance

(at 24 VDC), max.:

700 

Turn on time, 4 … 20 mA loop 30 s

Grounding:

Case isolated, internally

shielded

vironmental specifications

Operating temperature range: -40 … +85 °C

Vibration limit: 250 g peak

Destruction limit: 2500 g peak

Environmental sealing: hermetic

Physical data

Sensing element design: PZT ceramic, shear

Weight: 162 grams

Case material: Stainless steel

Mounting: 1/4-28 tapped hole

Output connector: 2-pin MIL-C-5015 style

Mating connector: Type R6

Recommended cabling: J9T2A

Notes:

(1) maximum loop resistance (RL) can be calculated by:

(max. resistance) = (V

DC power

- 10 V) / 20 mA

DC Supply

voltage

(max. resistance)

(min. wattage capability)

12 VDC 100   W

20 VDC 500  ¼ W

24 VDC 700  ½ W

26 VDC 800  ½ W

30 VDC 1.0 k ½ W

(2)

Lower resistance is allowed, greater than 10  recommended

(3) Minimum R

wattage determined by: (0.0004 x R

)

ALTHEN GmbH Mess- und Sensortechnik

Frankfurter Str. 150 - 152

65779 Kelkheim / Germany

 +49 6195 70060

 +49 6195 700666

http://www.althensensors.com

 info@althen.de

Table 1: Part Number Configuration PC420xx-yy

xx (Output 4… 20 mA) -yy (Full Scale Range)

Acceleration: Velocity:

ATP = Acceleration, true peak -05 = 5 g (49 m/s²) -05 = 0.5 ips (12.8 mm/s)

VTP = Velocity, true peak -10 = 10 g (98 m/s²) -10 = 1.0 ips (25.4 mm/s)

-20 = 20 g (196 m/s²) -20 = 2.0 ips (50.8 mm/s)

-30 = 3.0 ips (76.2 mm/s)

-50 = 5.0 ips (127 mm/s)

Dimensions

Dimensions in inches (mm), app

rox. values

These dra

wings are for information only and not intended for engineering.

Please contact us for detailed drawings.

Wiring

Connector Pin Function

Shell Ground

A Loop positive (+)

B Loop negative (-)

Due to continued