I. Basic Information
Brand: Bently Nevada (Bently, Baker Hughes)
Model: 3500/70 , Hardware Order Number: 125720-01 (front card), requires a rear-end I/O terminal board for use
Product Type: 4-channel eddy current + seismic vibration displacement monitoring module
Compatible System: 3500 series rotating machinery safety protection system (paired with 3500/05 chassis)
Certification: API670, CE, CSA, meets power plant and chemical rotating machinery protection specifications, supports SIL3 safety application
Installation: Standard chassis slot type, supports hot-swappable online replacement, no need to power off the entire machine
Core Channels and Input Types
Total 4 independent measurement channels, channels 1&2, 3&4 can be grouped in pairs. Each group is configured with one type of monitoring function. A single card can simultaneously achieve two measurement applications:
1. Can connect two types of sensors
Eddy current displacement sensor (3300 series probe + preamplifier): monitor radial vibration of the shaft, axial thrust displacement, differential expansion, eccentricity, shaft rotational speed key phase
Magnetic-electric speed / Piezoelectric acceleration sensor: monitor casing vibration, absolute vibration of the shaft, REBAM bearing fault detection
2. Support monitoring parameters
Radial shaft vibration, axial displacement, cylinder differential expansion, rotor eccentricity, vibration velocity, vibration acceleration, absolute shaft vibration, bearing fault detection (REBAM)
Bentley Nevada 81228-01 Specifications
| Recorder accuracy | All specified at +25°C (+77° F).
+4 to +20 mA: ±1.8% of the signal, ±0.09 mA offset. +1 to +5 Vdc: ± 2.2% of signal,±10 mV offset. 0 to -10 Vdc: ± 2.2% of signal, ±15 mV offset. |
| Output Impedance | 100 Ω. The minimum load resistance is 10 k Ω. |
| Voltage Compliance | 0 to +12 Vdc range across the load. Load resistance is 0 to 600 Ω when using the +4 to +20 mA option. |
| Operating Temperature | 0°C to +65°C (+32°F to +150°F). |
| Storage Temperature | -40°C to +85°C (-40°F to +185°F). |
| Relative Humidity | To 95%, non-condensing. |
| EMC Directive | Certificate of Conformity: 158710 |
| Low Voltage Directive | Certificate of Conformity: 135300 |
| CSA/NRTL/C | Class I, Div 2
Groups A, B, C, D T4 @ Ta = +65 °C |
| Weigh | 2.8 kg (6.2 lbs.). |
Ordering Information
Six-Channel Temperature TC Input Monitor 3300/30 -AXX-BXX-CXX-DXX-EXX
A: Full-scale Range Option
01 0-200°F
02 0-300°F
03 0-400°F
04 0-500°F
05 0-1000°F
11 0-100°C
12 0-150°C
13 0-200°C
14 0-250°C
15 0-500°C
B: Transducer Input Option
01 Type J
02 Type K
03 Type T
04 Type E
C: Alarm Relay Option
00 No Relays
01 Epoxy-sealed
02 Hermetically-sealed
04 Spare Monitor-No SIM/SIRM
D: Agency Approval Option
00 Not required
01 CSA/NRTL/C
02 ATEX self-certification
E: Safety Barrier Option
00 None
01 External
02 Internal
Six-Channel Temperature RTD Input Monitor 3300/35 -AXX-BXX-CXX-DXX-EXX
A: Full-scale Range Option
01 0-200°F
02 0-300°F
03 0-400°F
04 0-500°F
05 0-1000°F
11 0-100°C
12 0-150°C
13 0-200°C
14 0-250°C
15 0-500°C
B: Transducer Input Option
01 100 Ω platinum (0.00392)(3-wire)
02 100 Ω platinum (0.00385)(3-wire)
03 120 Ω nickel (3-wire)
04 10 Ω copper (3-wire)
05 100 Ω platinum (0.00392) (4-wire)
06 100 Ω platinum (0.00385) (4-wire)
07 120 Ω nickel (4-wire)
08 10 Ω copper (4-wire)
C: Alarm Relay Option
00 No Relays
01 Epoxy-sealed
02 Hermetically-sealed
04 Spare Monitor-No SIM/SIRM
D: Agency Approval Option
00 Not required
01 CSA/NRTL/C
02 ATEX self-certification
E: Safety Barriers
00 None
01 External
02 Internal
There are no reviews yet.