Samson Original Positioner 3730-3 Series High quality

• Customization: Available
• Signal ′1′ (Response): V
• Service Life: >5 X 106 Switching Cycles
• Model NO.: 3730-3
• Kv Coefficient: 0.15
• Auxiliary Power: Reverse Polarity Protection
• Transport Package: Carton
• Specification: 20*20*20
• Trademark: Samson
• Origin: Germany
• HS Code: 8481100090
• Production Capacity: 5

Product Description

Type 3730-3 Electropneumatic Positioner

The positioner ensures a predetermined assignment of the valve position (controlled variable x) to the input signal (set point w). It compares the input signal received from a control system to the travel or rotational angle of the control valve and issues a corresponding output signal pressure (output variable y).

Specification

Special features 
• Simple attachment to all common linear and rotary actuators – SAMSON direct attachment (Fig. 1) – NAMUR rib (Fig. 2) – Attachment to rod-type yokes acc. to IEC 60534-6-1 – Attachment according to VDI/VDE 3847 
– Rotary actuator attachment according to VDI/ VDE 3845 (Fig. 3) 
• Any desired mounting position of the positioner (but not suspended) 
• Simple single-knob, menu-driven operation 
• LCD easy to read in any mounted position due to selectab
le reading direction 
• Configurable with a PC over the SSP interface using the 
TROVIS-VIEW software 
• Variable, automatic start-up with four different initializati
on modes 
• Preset parameters - only values deviating from the stan
dard need to be adjusted 
• Calibrated travel sensor without gears susceptible to wear 
• Sub initialization mode (substitution) allows the positioner 
to be started up in case of emergency whilst the plant is 
running without the valve moving through the whole travel 
range. 
• Permanent storage of all parameters in EEPROM (protec
ted against power failure) 
• Two-wire system with a small electrical load of 410
• Adjustable output pressure limitation

Key Configurations

Versions 
– Type 3730-3 · Electropneumatic positioner for control val
ves, on-site operation, local communication with SSP inter
face, EXPERTplus diagnostics, HART® communication 
– Type 3730-6 · Electropneumatic positioner for control val
ves, HART® communication, on-site operation, local com
munication with SSP interface, EXPERTplus diagnostics, 
pressure sensors to monitor the supply air and signal pres
sure u T 8384-6

right elevation

left elevation

front elevation

Technical Specifications

(Custom configurations available upon request.)

Model	EX200	EX300	EX400
Operating Weight (kg)	20,000	30,500	45,000
Engine Power (kW)	110	165	220
Bucket Capacity (m³)	0.8–1.2	1.2–1.8	1.8–2.5
Max Digging Depth (m)	6.2	7.5	8.8
Max Reach (m)	9.5	11.2	13.6
Fuel Tank (L)	350	450	600

Drawings & Dimensions

Detailed CAD drawings and dimensional diagrams are available for download here or upon inquiry. Our engineering team can provide tailored designs to meet specific project requirements.

After Sales Service

Standard Warranty: 12 months or 2,000 operating hours (whichever comes first).
Extended Warranty: Optional coverage up to 36 months.
Global Support: 24/7 technical assistance and spare parts supply.
Training: On-site or remote operation/maintenance training.

Company Profile

FAQ

Q: What’s the lead time for orders?
A: Standard models ship in 15–30 days; customized units require 30–45 days.

Q: Do you provide after-sales service overseas?
A: Yes, we have partnered service centers in key regions.

Q: Can I request a customized bucket size?
A: Absolutely! We offer tailored attachments.

Q: What documents do you provide for export?
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).

Q: How do I place an order?
A: Contact us via email/phone for a quote, then confirm with a PO.