Go to homepage

PH 3400X-033 pH/ORP Measuring Module | For Protos | pH Differential Electrodes (Pfaudler) | Ex

Skip image gallery
Explosion protection
Product number: PH3400X-033
Description Technical details Downloads Use cases Blog posts

Description

PH 3400X-033 pH/ORP Measuring Module | For Protos | pH Differential Electrodes (Pfaudler) | Ex
Module for measurement of pH/ORP values, double high-resistance input, e.g. for Pfaudler differential electrodes

We look forward to hearing from you!
Contact Us

Technical details

Measurement Parameter: pH, ORP
Sensors: Pfaudler differential electrodes
Explosion protection: Yes

Downloads

Manuals

[1158] User Manual
Measuring Module Protos PH 3400(X)-033
for Protos II 4400(X) / Protos 3400 (X)
Version 10

Data Sheets

[1128] Data Sheet
Protos Module pH 3400 (X)-033
Product Description | Specifications | Product Range

Certificates

[18017] Certitficate of Conformity (China - Ex NEPSI)
Protos 3400X, Protos II 4400X, Module und MSU 4400X-180 Module
Cert No. GYJ20.1054 | 2025-08-19
[14326] EU Type-Examination Certificate
No. KEMA 03ATEX2530 | 2024-09-13 | Issue No. 12
Protos 3400X, Protos II 4400X & Modules
[16762] Certificate of Conformity (FM)
No. FM19CA0127X (Canada)
Protos 3400X, Protos II 4400X & Module
26 January 2023
[16304] EU Declaration of Conformity (DE, EN, FR)
No. EU210713A | 2021-07-13
Protos Measuring Module pH 3400X-033
[12581] Certitficate of Conformity (China - Ex NEPSI)
Protos 3400X, Protos II 4400X & Module
Cert No. GYJ20.1054 | 2025-08-19
[16755] Certificate of Conformity (FM)
No. FM19US0234X (USA)
Protos 3400X, Protos II 4400X & Module
26 January 2023
[7018] IECEx Certificate of Conformity
No. IECEx DEK 11.0054 | 2024-09-13
3400X, Protos II 4400X & Module
Issue No. 6

Installation guides

[14546] Installation Guide
Measuring Module Protos PH 3400(X)-033
for Protos II 4400(X) / Protos 3400 (X)

Control Drawings

[16770] Control Drawing
Protos 3400X, Protos II 4400X & Modules
Zeichnungsnummer 201.003-170 page 1 rev.4
cFMus

Our service

Used in Process or Applications

Process Analytics
Knick offers innovative process analyzers, high quality holders and fittings, and unique cleaning and calibration systems

Related Products

Skip product gallery
COMFF 3400-085 Communication Module | For Protos | Foundation Fieldbus
COMFF 3400-085 Communication Module | For Protos | Foundation Fieldbus
Product number:

COMFF3400-085

COMFF 3400X-085 Communication Module | For Protos | Foundation Fieldbus | Ex
COMFF 3400X-085 Communication Module | For Protos | Foundation Fieldbus | Ex
Product number:

COMFF3400X-085

COMPA 3400-081 Communication Module | For Protos | PROFIBUS PA
COMPA 3400-081 Communication Module | For Protos | PROFIBUS PA
Product number:

COMPA3400-081

COMPA 3400X-081 Communication Module | For Protos | PROFIBUS PA | Ex
COMPA 3400X-081 Communication Module | For Protos | PROFIBUS PA | Ex
Product number:

COMPA3400X-081

COND 3400-041 Conductivity Measuring Module | For Protos | Analog 2- or 4-Electrode Sensors
COND 3400-041 Conductivity Measuring Module | For Protos | Analog 2- or 4-Electrode Sensors
Product number:

COND3400-041

COND 3400X-041 Conductivity Measuring Module | For Protos | Analog 2- or 4-Electrode Sensors | Ex
COND 3400X-041 Conductivity Measuring Module | For Protos | Analog 2- or 4-Electrode Sensors | Ex
Product number:

COND3400X-041

CONDI 3400-051 Inductive Conductivity Measuring Module | For Protos | Analog Toroidal Sensors
CONDI 3400-051 Inductive Conductivity Measuring Module | For Protos | Analog Toroidal Sensors
Product number:

CONDI3400-051
CONDI 3400X-051 Inductive Conductivity Measuring Module | For Protos | Analog Toroidal Sensors | Ex
Product number:

CONDI3400X-051

LDO 4400-170 Oxygen Measuring Module | For Protos | Optical Sensor SE740
LDO 4400-170 Oxygen Measuring Module | For Protos | Optical Sensor SE740
Product number:

LDO4400-170

MS 4400-160 Multiparameter Measuring Module | For Protos | Memosens Sensors | 1 Channel
MS 4400-160 Multiparameter Measuring Module | For Protos | Memosens Sensors | 1 Channel
Product number:

MS4400-160

MS 4400X-160 Multiparameter Measuring Module | For Protos | Memosens Sensors | 1 Channel | Ex
MS 4400X-160 Multiparameter Measuring Module | For Protos | Memosens Sensors | 1 Channel | Ex
Product number:

MS4400X-160

MSU 4400-180 Multiparameter Measuring Module | For Protos | Up to three Memosens sensors | Multichannel
MSU 4400-180 Multiparameter Measuring Module | For Protos | Up to three Memosens sensors | Multichannel
Product number:

MSU4400-180

MSU 4400X-180 Multiparameter Measuring Module | For Protos | Up to three Memosens sensors | Multichannel | Ex
MSU 4400X-180 Multiparameter Measuring Module | For Protos | Up to three Memosens sensors | Multichannel | Ex
Product number:

MSU4400X-180

OUT 3400-071 Output Extension Module | For Protos
OUT 3400-071 Output Extension Module | For Protos
Product number:

OUT3400-071

OUT 3400X-071 Output Extension Module | For Protos | Ex
OUT 3400X-071 Output Extension Module | For Protos | Ex
Product number:

OUT3400X-071

OXY 3400-067 Oxygen Measuring Module | For Protos | Analog Amperometric Sensors
OXY 3400-067 Oxygen Measuring Module | For Protos | Analog Amperometric Sensors
Product number:

OXY3400-067

OXY 3400X-067 Module for Measurement of Oxygen | Ex
OXY 3400X-067 Module for Measurement of Oxygen | Ex
Product number:

OXY3400X-067

PH 3400-033 pH/ORP Measuring Module | For Protos | pH Differential Electrodes (Pfaudler)
PH 3400-033 pH/ORP Measuring Module | For Protos | pH Differential Electrodes (Pfaudler)
Product number:

PH3400-033

Protos PH 3400-035
PH 3400-035 pH/ORP Measuring Module | For Protos | Analog pH Sensors
Product number:

PH3400-035

PH 3400X-033 pH/ORP Measuring Module | For Protos | pH Differential Electrodes (Pfaudler) | Ex
PH 3400X-033 pH/ORP Measuring Module | For Protos | pH Differential Electrodes (Pfaudler) | Ex
Product number:

PH3400X-033

Protos PH 3400-035
PH 3400X-035 pH/ORP Measuring Module | For Protos | Analog pH Sensors | Ex
Product number:

PH3400X-035

PID 3400-121 Configurable Controller Module | For Protos | Analog, digital or PID controller
PID 3400-121 Configurable Controller Module | For Protos | Analog, digital or PID controller
Product number:

PID3400-121

PID 3400X-121 Configurable Controller Module | For Protos | Analog, digital or PID controller | Ex
PID 3400X-121 Configurable Controller Module | For Protos | Analog, digital or PID controller | Ex
Product number:

PID3400X-121

PN 4400-095 Communication Module | For Protos | PROFINET
PN 4400-095 Communication Module | For Protos | PROFINET
Product number:

PN4400-095